added public profiles
added test and fixed problem in initializing comment
adding popular posts and active users
fixed comment spec for the without permission test
added databasecleaner and factorygirl
Installed the New Relic gem
added the reset and fixed merge errors
Merge pull request #11 from tienyuan/testing-our-error

added test and fixed problem in initializing comment
Merge pull request #12 from tienyuan/newrelic

Installed the New Relic gem
destroying comments with ajax
Merge branch 'destroying-with-ajax'
creating comments with ajax
Merge branch 'master' of github.com:tienyuan/bloccit into voter-helper
making the helpers DRY