Added caching for getThreads and added result-start, result-end on away back & disconnect
Removed the getItems API from ArrayCache.
Merge branch 'master' into localStorageChanges
Back, away based delim should be applicable only for current user
Delete debug statements and commented out getThreads caching.
Added a function wrapper around delRoomTimeout
Removed unnecessary closure
Merge pull request #115 from scrollback/localStorageChanges

Local storage getThreads caching + result-start result-end messages on away back.