Merge pull request #1 from kaogua/dev

masterにマージします
Merge pull request #2 from kaogua/dev

add unicorn
Merge pull request #3 from kaogua/dev

add gem therubyracer
change mutil-json version and add unicon.conf file
Merge pull request #4 from kaogua/master

change mutil-json version and add unicon.conf file