Added a like button and like controller
added table, columns, model for likes
added cache to reviews
finished the like and unlike button
Added .env.example file
Fixed AWS security issue
Added launchy gem
Merge pull request #17 from LaunchAcademy/add_carrierwave

Added CarrierWave with AWS S3 storage
Merge branch 'master' into admin_roles
cleaned up the code.
Changed migration
merger in master
Merge pull request #19 from LaunchAcademy/like_a_review

RFR
fixed the failing tests
solved merge conflicts
removed save and open page
Merge pull request #23 from LaunchAcademy/like_a_review

RFR
Resolved merge conflicts.