Adding twitts: Functional!

You can now compose twitts and the database will be updated!
Added topic page. Changed user route.

Topic page now works.
Now you need to use /userview/ to view a userpage
and /topicview/ to view a topicpage.

TBD: Adding a topic to favourites.
Topic page functionality++

User logged in can now like and unlike topics. Change will be reflected
in database.
Documentation commit