Log Message:
www/ruby-patron: update to 0.12.1

### 0.12.1

* Ensure HTTP2 response headers/status lines are correctly handled

### 0.12.0

* Replace StringScanner in HeaderParser with StringIO, fix Webmock regression \ 
when the headers string would
  not have an empty CRLF-terminated line at the end - which would cause the \ 
parser to return a nil.
* Added `Session#dns_cache_timeout` as a config option for CURLOPT_DNS_CACHE_TIMEOUT

### 0.11.1

* Make sure StringScanner is available to HeaderParser.

### 0.11.0

* Added `Session#progress_callback` which accepts a callable object, which can \ 
be used to report session progress during request
  execution.
* Fixed parsing of response headers when multiple responses are involved \ 
(redirect chains and HTTP proxies)

### 0.10.0

* Added `Session#low_speed_time` and `Session#low_speed_limit`. When used, they \ 
will force libCURL to raise
  a timeout if a certain speed limit is not met performing the request. These \ 
can be used for better timeout
  handling. These are available in all libCURL versions. See \ 
https://curl.haxx.se/libcurl/c/CURLOPT_LOW_SPEED_TIME.html
  and https://curl.haxx.se/libcurl/c/CURLOPT_LOW_SPEED_LIMIT.html