Splitting server - usersDatabase separated, clientHandlers in progress.
Splitting servers into separate files completed & roughly tested.
Merge branch 'develop' of https://github.com/matteozajac/Jamii into refactorServer
Fixed adding handlers to sockets
Merge branch 'develop' of https://github.com/matteozajac/Jamii into whiteboard
Change login messages (prevent from brute force attacks)
Merge branch 'develop' of github.com:matteozajac/Jamii into develop
drawHandler added.
Merge branch 'develop' of https://github.com/Regalis/Jamii into whiteboard
Fix registration process

* remove udb references in userDatabase.js
* replace data with packet in clientHandlers.js
Fix session updating
Merge branch 'develop' of github.com:ArianaLas/Jamii into develop
added password_change handling to server
Fix pasword change
Merge branch 'develop' of github.com:matteozajac/Jamii into develop
Merge branch 'whiteboard' of github.com:alekgajos/Jamii into develop
Merge branch 'develop' of github.com:ArianaLas/Jamii into develop
Merge branch 'develop' of github.com:ArianaLas/Jamii into develop
Whiteboard inter-client communication added
Merge branch 'develop' of https://github.com/Regalis/Jamii into afterSprintMerge