added preference options
added strings for browser settings
added Constants for browser settings
added settings for browser issue with plugin https://stackoverflow.com/questions/19362049/setpluginsenabled-not-exist-for-webview
Remove test function trySetUserAgentEnabled()
added boolan to enable user-agent edit
added overwriteUA boolan in RedditSettings
useragent only changes if overWriteUA boolan set
Merge branch 'master' of github.com:chrisjwilsoncom/diode
Merge remote-tracking branch 'chrisjwilsoncom/master'