upgrade to ruby 1.9.3
use nokogiri
lock in nokogiri 1.5.10
updated gem for 1.9.3
remove extra thin
gems for ruby 1.9.3p545
deployment setting for ruby 1.9.3
setup for 1.9.3
Merge branch 'ruby1.9.3'

* ruby1.9.3:
  setup for 1.9.3
  deployment setting for ruby 1.9.3
  gems for ruby 1.9.3p545
  remove extra thin
  updated gem for 1.9.3
  lock in nokogiri 1.5.10
  use nokogiri
  upgrade to ruby 1.9.3
ruby 1.9.3 support