avoid $ for zepto (rename to _$)
split StateClass from main
replace State to app.state
add config class
move Config to app.config
Add sinon for js test
use Settings.crawl_interval

`crawl_interval` was not used anywhere.
add config_spec
split style_intitializer
Merge pull request #116 from mizchi/zepto

Add zepto.js
add lib/models directory
fix mouse event on left menu
Merge pull request #117 from onk/use_crawl_interval

use Settings.crawl_interval
fix pref path on share
Merge pull request #118 from mizchi/config-state-model

Refactor main.js to extract models
Refactor User page
Fix Gemfile hash styles (minor mod)
Set up coveralls
Fix fail of logout
Merge pull request #121 from makimoto/coveralls

Set up coveralls