update yard
fix up cases where yard doesn't like our private docs
Updated travis build scripts (from rspec-dev)
Merge pull request #512 from rspec/update-travis-build-scripts-2014-03-29-for-master

Updates from rspec-dev (2014-03-29)
Format BigDecimal eq failures with to_s
Merge pull request #510 from danielfone/bigdecimal-representation

Format BigDecimal eq failures with to_s
Add changelog for #510.

[ci skip]
Updated travis build scripts (from rspec-dev)
Merge pull request #514 from rspec/update-travis-build-scripts-2014-03-30-for-master

Updates from rspec-dev (2014-03-30)
Merge pull request #507 from rspec/update_yard

Update yard
Add missing docs.

This gets us back to 100% YARD doc coverage and
should get our build back to green.