add pg gem for production
Merge branch 'heroku-pg' into develop
remove static_pages controller
root to homes index page
add index on posts published column
render posts
automacially render gravatars
some bugfix
add pro label to pro posts
dashboard view imorove
use kaminari for pagination
render pagination with twitter bootstrap
add pagination to posts
rendering posts
Merge branch 'posts-index' into develop
fix user signup and signin process
Merge branch 'hotfix' into develop
seed admin users
Merge branch 'admin-seed-data' into develop