Improve desktop notification.
Add favicon.
Notification limit.
Add production app config sample.
Add fallback locale support.
Improve code for fallback locale.
Add topic and post tools area.
topic watching
topic star
Adjust styles.
Merge branch 'feature/topic-watching' into develop
Send notification for topic watcher on new post.
User can view own starred topics now.
Topic creator will auto watching the topic.
Fixed namesapace.
Working on system cron job triggered by users requests.
log cron job
Changed to make the limitation variable configurable.
Added DB storage based lock mechanism.