Changed album validations to the new style, added model tests.
Changed attendance record validations to the new style, added model tests.
Changed validations to the new style, added model tests.
Changed friendship validations to the new style, added model tests.
Merge pull request #220 from mattraykowski/master

Changing validations to the new 'validates' style
Update .travis.yml
Merge pull request #222 from ZucchiniZe/patch-1

Update .travis.yml
Makes broken test pass on Travis [#223]