Database: added message content

Added so its possible to store messageConversation/<messageID> and
<messageID>/messages in the database.
Added database support in view4.

Tries to get database content when http.get fails.
Other code is untouched and database code is coded for the current
view4.index variables.
Fixed some issues in view1 and removed outbox link.

view1 didnt try to get data from api when online, but instead realied on
the database.

Also removed link to view2 from top bar.