Rename "(No Threads)" to "(No Messages")
Remove non-error console.log statements

Ref #6
Merge pull request #9 from kyhe/remove-extraneous-logging

Remove non-error console.log statements
Merge pull request #8 from kyhe/no-messages-string

Rename "(No Threads)" to "(No Messages")
Caching; Calendar improvements
Merge branch 'master' into gh-pages
Updated build