Add 1.6.0-master-SNAPSHOT to multi-version testing.
Merge branch 'master' of github.com:clj-time/clj-time
Merge branch 'master' of github.com:clj-time/clj-time
Prep for 0.6.0 release.
Typo in README
Merge pull request #85 from seancorfield/master

Prep for 0.6.0 release