Log Message:
Update ruby-twitter to 5.5.1. Part of PR/48447.

Changelog (from CHANGELOG.md)

5.5.1
-----
* [Fix bug where `Twitter::Error::AlreadyFavorited` would never be \ 
raised](https://github.com/sferik/twitter/issues/512) \ 
([@polestarw](https://twitter.com/polestarw))
* [Fix bug where `Twitter::Error::AlreadyPosted` would never be \ 
raised](https://github.com/sferik/twitter/commit/e6b37b930c056a88d8ee1477246635caf579111d)
* [Restore `Twitter::Entities#entities?` as a public \ 
method](https://github.com/sferik/twitter/commit/234a9e3134eeee072bd511e1c1f1823ceb1531a2)

5.5.0
-----
* [Add entities to \ 
`Twitter::DirectMessage`](https://github.com/sferik/twitter/commit/d911deb456cb2da6e14d0b3c69ba4d068ca85868)
* [Add conversion methods to \ 
`Twitter::NullObject`](https://github.com/sferik/twitter/commit/4900fee474feaa1514c06d459a9da6d52c45a60e)

5.4.1
-----
* [Default to maximum number of tweets per \ 
request](https://github.com/sferik/twitter/commit/1e41b5d4dde8678f5968b57dafe9da63b092646c)

5.4.0
-----
* [Fix enumerable search \ 
interface](https://github.com/sferik/twitter/commit/e14cc3391ebe8229184e9e83806c870df3baa24c)

5.3.1
-----
* [Add `Twitter::Utils` \ 
module](https://github.com/sferik/twitter/commit/a1f47fbf19b859c8e680a0a92eff5e225a015090) \ 
([@charliesome](https://twitter.com/charliesome))
* [Remove `Enumerable` monkey \ 
patch](https://github.com/sferik/twitter/commit/818b28d1621e843c0c6f9ef471076f4125623e52) \ 
([@charliesome](https://twitter.com/charliesome))
* [Don't spawning a new thread if there's only one \ 
element](https://github.com/sferik/twitter/commit/c01ea8309c16eb77eeb368452df1dadd1e405532)
* [Introduce meaningful constant \ 
names](https://github.com/sferik/twitter/commit/215c80890d702535de83d8f849885a95ec153920) \ 
([@futuresanta](https://twitter.com/futuresanta))
* [Automatically flatten \ 
`Twitter::Arguments`](https://github.com/sferik/twitter/commit/a556028ace04cb00c3c2b9cb8f72f792a86f04d6)

5.3.0
-----
* [Add `UNABLE_TO_VERIFY_CREDENTIALS` error \ 
code](https://github.com/sferik/twitter/commit/6a47e715ef7935cd36a2f78ed877deb3c09af162)
* [Don't suppress `Twitter::Error::Forbidden` in #follow and \ 
#follow!](https://github.com/sferik/twitter/commit/b949c0400dabc6774419025e7b131d0a18447c3a)
* [Update memoizable dependency to ~> \ 
0.3.1](https://github.com/sferik/twitter/pull/501)

5.2.0
-----
* [Replace `URI` with \ 
`adressable`](https://github.com/sferik/twitter/commit/7ea2f5390dc7456950f55c90aa4e48f29dcd4604)
* [Make `Twitter::Streaming::FriendList` an \ 
array](https://github.com/sferik/twitter/commit/1a38e5e8182823c3060fc59c270ef754bd49a179)
* [Add \ 
`Twitter::Streaming::DeletedTweet`](https://github.com/sferik/twitter/commit/084025b5e348bd33b4c29c6b9e40565c0e77319c)
* [Add \ 
`Twitter::Streaming::StallWarning`](https://github.com/sferik/twitter/commit/b07ac50552f5063ee43a490fa40da8b6889df772)
* [Add error code for "User is over daily status update \ 
limit"](https://github.com/sferik/twitter/commit/76c088d38e594703ee391f2a524142aa357b0972)
* [`Twitter::Streaming::Client#site` can take a `String` or \ 
`Twitter::User`](https://github.com/sferik/twitter/commit/e3ad4f2da1f8fc82e1d3febbc2602f626bced8a8)
* [Update `http_parser.rb` dependency to `~> \ 
0.6.0`](https://github.com/sferik/twitter/commit/6d2f81bfc5bd469d558868a0f65356f30ca9f5e7)

5.1.1
-----
* [Custom equalizer for \ 
`Twitter::Place`](https://github.com/sferik/twitter/commit/79c76a9bed4f0170c8c09fe38ad4f0ee6aa4505e)

5.1.0
-----
* [Use `Addressable::URI` \ 
everywhere](https://github.com/sferik/twitter/commit/97d7c68900c9974a1f6841f6eed2706df9030d64) \ 
([@matthewrudy](https://twitter.com/matthewrudy))
* [Allow use of `Twitter::Place` instead of \ 
`place_id`](https://github.com/sferik/twitter/commit/c2b31dd2385fefa30a9ddccf15415a713cf5953a)
* [Allow use of `Twitter::Tweet` instead of \ 
`in_reply_to_status_id`](https://github.com/sferik/twitter/commit/6b7d6c2b637a074c348a56a51fb1e02252482fb2)

5.0.1
-----
* [Fix `buftok` delimiter handling](https://github.com/sferik/twitter/pull/484)
* [Started handling streaming \ 
deletes](https://github.com/sferik/twitter/commit/8860b97bce4bc36086116f380a2771af3c199ea2)

5.0.0
-----
* [Remove `Twitter::API::Undocumented#status_activity` and \ 
`#statuses_activity`](https://github.com/sferik/twitter/commit/7f970810af251b2fe80c38b30c54485c55bd2034)
* [Remove `Twitter::Tweet#favoriters`, `#repliers`, `#repliers_count`, and \ 
`#retweeters`](https://github.com/sferik/twitter/commit/77cc963381a68e8299ef6c6b7a306b440666d792)
* [Remove identity \ 
map](https://github.com/sferik/twitter/commit/ec7c2df78a200e2b0b1cd3a40983c6ce9dee552d)
* [Remove \ 
`Twitter::Cursor#all`](https://github.com/sferik/twitter/commit/72be4148b973153c6d3044c406b768ad832555ff)
* [Remove \ 
`Twitter::Cursor#collection`](https://github.com/sferik/twitter/commit/9ae4621610ba6c26950e6b77f950f698cdfc8dac)
* [Remove \ 
`Twitter#from_user`](https://github.com/sferik/twitter/commit/d2ae9f1cc1f5224bcdff06cda65fabdf9e7fbcb3)
* [Remove `ClientError`, `ServerError`, and \ 
`ParserError`](https://github.com/sferik/twitter/commit/72843948d8a6f66345adc254fa91cf1097592b22)
* [Remove global \ 
configuration](https://github.com/sferik/twitter/commit/239c5a8462fabb8c8ef9ec6a4cdded34561d572d)
* [Remove ability to configure client with environment \ 
variables](https://github.com/sferik/twitter/commit/17e958579f65abf8932841f20058a5989abb994f)
* [Remove Brittish English \ 
aliases](https://github.com/sferik/twitter/commit/572813b373a1c3001ff6c1bb729f092434d17bab)
* [Replace `multi_json` with \ 
`json`](https://github.com/sferik/twitter/commit/e5fc292fee078567664acf6be4ed31a8ad077780)
* [Rename `oauth_token` to \ 
`access_token`](https://github.com/sferik/twitter/commit/d360f8015c487c4599460abd0dd0bc7e59a522a3)
* [Move `Twitter::Arguments` out of `REST::API` \ 
namespace](https://github.com/sferik/twitter/commit/8faa15309d906dd46fccc1b914ea4aa7a5da7c2d)
* [Move `Twitter::Client` into `REST` \ 
namespace](https://github.com/sferik/twitter/commit/5b8c3fd243227888fc0886b0bf864ecd3a018f99)
* [Add \ 
`Twitter::Streaming::Client`](https://github.com/sferik/twitter/commit/23afe90aa494229a4389c3e51f753102b34fc551)
* [Add \ 
`Twitter::Error::AlreadyPosted`](https://github.com/sferik/twitter/commit/e11d2a27dd0dfbbe16c812a81b9c2ab2852a7790)
* [Add \ 
`Twitter::REST::Client#reverse_token`](https://github.com/sferik/twitter/commit/39139c4df35b54b86fae29d1ac83a08f4aa293cd)
* [Add `#url` methods to `Twitter::List`, `Twitter::Tweet`, and \ 
`Twitter::User`](https://github.com/sferik/twitter/commit/a89ec0f4e81097cc303b6c204e0375eb57ffd614)
* [Add `Twitter::Place#contained_within` and \ 
`#contained_within?`](https://github.com/sferik/twitter/commit/23cc247bd20001ecbafa544bfb4546bdfc630429)
* [Add \ 
`Twitter::GeoResults`](https://github.com/sferik/twitter/commit/be1a0a1425a6700267aae0f94a8835bff24dad56)
* [Add \ 
`NullObject`](https://github.com/sferik/twitter/commit/17880f491726cee77c1cbcf914887e95d5e6ae7e)
* [Add predicate methods for any possible \ 
`NullObject`](https://github.com/sferik/twitter/commit/eac5522edededacfc2a22d6f6879da43b8136d41)
* [Always return `URI` instead of \ 
`String`](https://github.com/sferik/twitter/commit/341f68d1a46667a820754d30ffa6ec2f50034afc)
* [Allow `URI` as \ 
argument](https://github.com/sferik/twitter/commit/c207567e674f108e4074e12c9e7343fb74e8a97c)
* [Allow `String` in addition to `URI` \ 
objects](https://github.com/sferik/twitter/commit/89a46fbd3560109da87d5f87262dcf6bd2a336c6)
* [Collection \ 
caching](https://github.com/sferik/twitter/commit/d484d7d7d7a0956f9b4fa6791a911ed7c9522cba)
* [Implement `Twitter::Cursor#each` without making an extra HTTP \ 
request](https://github.com/sferik/twitter/commit/8eeff57f5c6d6ca0a6f1ff5ebc31e652a71fc150)
* [Make `Twitter::SearchResults` \ 
enumerable](https://github.com/sferik/twitter/commit/d5ce8537164912e79dffc5a054ecd9ae6ecb8075)
* [Make `Twitter::Base` objects \ 
immutable](https://github.com/sferik/twitter/commit/69b1ef7edad32398b778c8449bc3605739a6c59a)
* [Missing key now raises `KeyError`, not \ 
`ArgumentError`](https://github.com/sferik/twitter/commit/f56698caff608527b9f3c2c3dd4c18306589cb3b)
* [Use `equalizer` instead of manually overwriting \ 
#==](https://github.com/sferik/twitter/commit/a7ddf718b119e9c5fc8b87e6784e8c3304707a72)
* [Give methods more natural \ 
names](https://github.com/sferik/twitter/commit/e593194fb7bd689fca561e6334db1e6af622590a)
* [Fix `Twitter::SearchResults#rpp` return \ 
value](https://github.com/sferik/twitter/commit/28d73200490ac2755c3e68d8d273fbc64a8d7066)

4.8.1
-----
* [Ignore case of profile image \ 
extension](https://github.com/sferik/twitter/commit/73760610e959ae868de23de3da661d237fbcb106)
* [Allow use of Twitter::Token in place of bearer token \ 
string](https://github.com/sferik/twitter/commit/13596bc60db36ecaf5a1df09ecb322d85d8c2922)
* [Add \ 
Twitter::API::Undocumented#tweet_count](https://github.com/sferik/twitter/commit/795458a25ec7b143a995e7f2f2043e523c11961c)
* [Add missing \ 
dependencies](https://github.com/sferik/twitter/commit/e07e034472df8b7aa44c779371cf1e25d8caa77d) \ 
([@tmatilai](https://twitter.com/tmatilai))

4.8.0
-----
* [Add \ 
`Twitter::SearchResults#refresh_url`](https://github.com/sferik/twitter/commit/6bf08c008de139aad3ec173461e8633bfa5a3bd8) \ 
([@mustafaturan](https://twitter.com/mustafaturan))
* [Fix issue with wrong signature being generated when multipart data is \ 
posted](https://github.com/sferik/twitter/commit/65ab90a6d51755e5901434a3568f8163ca3e262f) \ 
([@mustafaturan](https://twitter.com/mustafaturan))
* [Restore compatibility with Ruby \ 
1.8.7](https://github.com/sferik/twitter/commit/fb63970c1bd19792955d092a38b6adf53b558ec7)
* [Remove undocumented methods, retired in the \ 
APIpocalypse](https://github.com/sferik/twitter/commit/cf6a91f8df833dce5bffc7a0292402860e7d4da7)

4.7.0
-----
* [Add support for application-only \ 
authentication](https://github.com/sferik/twitter/pull/387) \ 
([@paracycle](https://twitter.com/paracycle))
* [Add support for `Twitter::Entity::Symbol` \ 
entities](https://github.com/sferik/twitter/commit/a14a0cdc57ad5d7760392f71a280c7100a5b5936) \ 
([@anno](https://twitter.com/anno))
* [Add \ 
`Twitter::API::OAuth#invalidate_token`](https://github.com/sferik/twitter/pull/372) \ 
([@terenceponce](https://twitter.com/terenceponce))
* [Add `Twitter::API::Lists#lists_owned` \ 
method](https://github.com/sferik/twitter/commit/9e97b51c20aabf4485a91ae7db697ee3be131a89)
* [Add `Twitter::API::Tweets#retweeters_ids` \ 
method](https://github.com/sferik/twitter/commit/8cf5b2ddf3d2647084496c7c3f205b2468d84cbe)
* [Add \ 
`Twitter::SearchResults#next_results`](https://github.com/sferik/twitter/pull/365) \ 
([@KentonWhite](https://twitter.com/KentonWhite))
* [Make consumer_key \ 
readable](https://github.com/sferik/twitter/commit/a318869c4827d6add781730cfb67fd2bdca5c584)
* [Loosen required_rubygems_version for compatibility with Ubuntu \ 
10.04](https://github.com/sferik/twitter/commit/41bd5655c2e7eca813807d742cb7fdec8f0bb027)
* [Remove default SSL configuration options and \ 
override](https://github.com/sferik/twitter/commit/113b14bc05a9f8e513245fda057e7f16f8965357)