Add `--deprecation-out` CLI option.
Update the "too many deprecations" message.

...so that it mentions the new `--deprecation-out` CLI option.
Warn if setting `config.deprecation_stream` is ignored.
Merge pull request #1458 from rspec/deprecation-stream-fixes-3-0

Deprecation stream fixes 3 0
Updated travis build scripts (from rspec-dev)
see if we still need rbx specific dependencies
Rework color_enabled
remove backtrace_cleaner
remove filename_pattern as an alias of pattern (choosen because pattern matches cli)
Merge pull request #1463 from rspec/update-travis-build-scripts-2014-03-29-for-master

Updates from rspec-dev (2014-03-29)
fixup color_enabled docs
Merge pull request #1464 from rspec/try_travis_without_rubysl

Try Travis RBX builds without specific gemfile dependencies
Updated travis build scripts (from rspec-dev)
Merge pull request #1460 from rspec/remove_deprecated_config

Remove deprecated config
Merge pull request #1467 from rspec/update-travis-build-scripts-2014-03-30-for-master

Updates from rspec-dev (2014-03-30)
Standardize capitalization of scenarios.

When viewing in Relish, scenarios read as section titles. General
punctuation dictates that section titles should start capitalized.
Use a more explicit scenario description.
Update feature description.
Standardize on `RSpec.describe` over `describe`.
Surround inline code in back ticks.