Edited design

~Edited home- & registerpage design.

OBS! Login-button not functioning yet. Fixed in LoginBB, method:
login().
Register-button working on my computer, but not Elins or Azers.
Revert "Edited design"

This reverts commit 5c5b1c2507ec25d5200b45e52fd1aefddac5bc0a.
Revert "Revert "Edited design""

This reverts commit 6229851cdb37398f8ab2b58ed221dea1996d2d8f.
Added Login-class

Register (add to DB) and Login (find in DB) are both working.

BUG: After successfull login: chatroom.xhtml doesn't use the
css-stylesheet.
Added status-column

When register a user, the status is set to offline
When login, the status is set to online