Added Kaminari for pagination of cats and reviews.

9 Cats per page on index, 3 reviews per cat shown.
minor styling and added (none) text if no description exists for cat
Shifted timezone to EST
Added pagination spec tests
updated TODO
updated TODO and README
added validation on decription - 255
cleaned up code
Updated emails and sent-from address
cat pagination moved to controller
fixed feature spec tests
Validations on descriptions and titles
minor styling adjustment
Merge pull request #22 from LaunchAcademy/add_validations

Add validations
put page values in controller, fixed show page slightly, fixed tests/factories
Merge pull request #20 from LaunchAcademy/aw-pagination

Added Kaminari for pagination of cats and reviews.
merge in pagination