Dependency cleanup: move things into proper groups; conditionally add Rake tasks depending on gem presence; make optional gems no-require.
Fix a Hash literal that does not parse under Ruby 1.8
Fix a subtle bug that causes our string-scrubbing logic not to work right under Ruby 1.9 and 2.0.
Merge pull request #143 from rightscale/travis

Bump RightDevelop; fix Coveralls Rake task