Ignore Rubymine .idea project directory

MSP-11156
Travis-ci integration

MSP-11156

.travis.yml for configuration and badge in README for master build
status.
Minimal rake spec

MSP-11156

Minimal `rake spec` so it works on travis-ci to test integration.
Update spec_helper to match rspec 3 template

MSP-11156
Require rspec 3

MSP-11156
Add examples to test rspec config

MSP-11156
Fix 'head' rvm target

MSP-11156

'head' for rvm appears to just use ruby 1.9.2 on travis-ci, so trying
with 'ruby-head' instead to try and get ruby 2.2.
Expand list of tested rubies

MSP-11156

Include jruby-head and rbx-2.2 and rbx-head.
Remove failing builds

MSP-11156

rbx-head failed due to there not being a binary to download
(https://travis-ci.org/rapid7/metasploit-yard/jobs/33591394) and
jruby-head failed with a NullPointerException
(https://travis-ci.org/rapid7/metasploit-yard/jobs/33591392)
Add CodeClimate badge

MSP-11156
Add simplecov

MSP-11156

Needed to support CodeClimate coverage reporter.
CodeClimate Test Coverage

MSP-11156
Add Coveralls

MSP-11156
Add missing development dependency

MSP-11156

Forgot to add codeclimate-test-runner to gemspec.
Add gemnasium badge

MSP-11156
Add rubygems badge

MSP-11156
Add Inch CI badge

MSP-11156
Add PullReview badge

MSP-11156
Add RVM stuff to gitignore
Merge pull request #1 from rapid7/chore/MSP-11156/integrations

Integrations with 3rd-party tools