Log Message:
Update ruby-rspec-expectations to 3.3.0.

### 3.3.0 / 2015-06-12
[Full Changelog](http://github.com/rspec/rspec-expectations/compare/v3.2.1...v3.3.0)

Enhancements:

* Expose `RSpec::Matchers::EnglishPhrasing` to make it easier to write
  nice failure messages in custom matchers. (Jared Beck, #736)
* Add `RSpec::Matchers::FailMatchers`, a mixin which provides
  `fail`, `fail_with` and `fail_including` matchers for use in
  specifying that an expectation fails for use by
  extension/plugin authors. (Charlie Rudolph, #729)
* Avoid loading `tempfile` (and its dependencies) unless
  it is absolutely needed. (Myron Marston, #735)
* Improve failure output when attempting to use `be_true` or `be_false`.
  (Tim Wade, #744)
* Define `RSpec::Matchers#respond_to_missing?` so that
  `RSpec::Matchers#respond_to?` and `RSpec::Matchers#method` handle
  dynamic predicate matchers. (Andrei Botalov, #751)
* Use custom Time/DateTime/BigDecimal formatting for all matchers
  so they are consistently represented in failure messages.
  (Gavin Miller, #740)
* Add configuration to turn off warnings about matcher combinations that
  may cause false positives. (Jon Rowe, #768)
* Warn when using a bare `raise_error` matcher that you may be subject to
  false positives. (Jon Rowe, #768)
* Warn rather than raise when using the`raise_error` matcher in negative
  expectations that may be subject to false positives. (Jon Rowe, #775)
* Improve failure message for `include(a, b, c)` so that if `a` and `b`
  are included the failure message only mentions `c`. (Chris Arcand, #780)
* Allow `satisfy` matcher to take an optional description argument
  that will be used in the `description`, `failure_message` and
  `failure_message_when_negated` in place of the undescriptive
  "sastify block". (Chris Arcand, #783)
* Add new `aggregate_failures` API that allows multiple independent
  expectations to all fail and be listed in the failure output, rather
  than the example aborting on the first failure. (Myron Marston, #776)
* Improve `raise_error` matcher so that it can accept a matcher as a single argument
  that matches the message. (Time Wade, #782)

Bug Fixes:

* Make `contain_exactly` / `match_array` work with strict test doubles
  that have not defined `<=>`. (Myron Marston, #758)
* Fix `include` matcher so that it omits the diff when it would
  confusingly highlight items that are actually included but are not
  an exact match in a line-by-line diff. (Tim Wade, #763)
* Fix `match` matcher so that it does not blow up when matching a string
  or regex against another matcher (rather than a string or regex).
  (Myron Marston, #772)
* Silence whitespace-only diffs. (Myron Marston, #801)