show prev & next topic under a node
updated schema
display prev/next topic title in proper length
fix logic bug for showing prev topic
Update upyun settings
Merge pull request #13 from zhenning/develop

update db/schema.rb to reflect the actual migration status
use unicorn to deploy rabel

and improve nginx example config
use foreman to export unicorn upstart scripts
fix bug: only redirect /topics/:id for GET request
refactoring deployment: add unicorn upstart conf
add deployment script to manually stop unicorn
use rubygems.org as gem sourse

and upgrade facebox-rails
use bright style for header
bump version to 1.5.0.alpha
use 'rabel-meta' gem to track downloads

and use puma in development environment
only support Rabel default theme
fix deploy script

we should use `rvm use 1.9.3-p327 --default` to set default ruby version
update unicorn config

don't listen on port 3000
configure rabel via environment variables
move env config to `.env` so foreman can read them