update dependency
added redis cache store
cache maanipulation methods are private.
integrate adapter specific methods
YAML.load('null') returns nil object
update dependency
fix js not load
alert of old ruby version for end of ruby 1.8 #267

	* show an alert message top of config page
	* hide the message after click close button
	* save option 'old_ruby_alert.hide' as true
bump version to 3.2.1.20130313
update latest dependency
remove bundler/capistrano

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Added codeclimate badge
coveralls!
ignored simplecov when running coveralls
added coveralls badge
fixed dependency error with ruby1.8
added 2.0.0 into travis-ci. and removed 1.9.2
fixed wrong condition
upgrade ruby1.8 test suite
added rdb test into travis