rm likeable related controller and helper and view
Revert "added likable function"

This reverts commit b107a6fee500d96bc3368dff52717e2649e24615.
Revert "added gem of redis and likeable"

This reverts commit 60b0261c6725b795ea60933f3bee8a3903b4326f.
remove the like controller spec Fixed #11
remove the likeable description
changed the useless pry-nav
update lock
Merge pull request #54 from hlee/master

revert the likeable approach
Fixed #53