TEST: Rake task & factories to populate DB.
DOC: Updated README with testing info.
BUG: strftime applied in controller and in view.
Merge pull request #49 from alexjmacdonald/testdata

Test data generation
Merge branch 'master' of git://github.com/danielballan/mobtown
FIX: Fixes #41, Categories only appear in DanceClass menu if they have >0 dance classes.
Merge branch 'master' of https://github.com/alexjmacdonald/mobtown
Revert "FIX: Fixes #41, Categories only appear in DanceClass menu if they have >0 dance classes."

This reverts commit 4be116c2e00b6c42d6a24f89217822e958ebccaf.