Service plug-in documentation
Merge remote-tracking branch 'origin/master'
Merge pull request #169 from pradine/master

 Service plug-in documentation
Hide credentials specified in VCAP_SERVICES
Merge pull request #171 from IgorBelyi/mask-credentials

Hide credentials specified in VCAP_SERVICES
rspec during dev improvements to cleanup log output, deprecated
formatter warnings, and ignore local rspec config