Add license information to CSS file
Added connectionManager, friendList and friendListGUI classes
Added packet handlers for getting friend info and seraching friends.
Added registration and login js
Finished first version of friendList handling in friendList.js
Merge remote-tracking branch 'alek/develop' into develop
Merge branch 'develop' of github.com:alekgajos/Jamii into develop
Add authentication functions, add users db class

* add User class with import/export functionalities
* add UsersDatabase class for saving/restoring User data (closes #9)
Getting started with registration and login form (closes #6)
Fix typo in clients_register() function
Merge branch 'develop' of github.com:ArianaLas/Jamii into develop
Added simple login function.
Handling opening multiple connections on the server side, assigning session IDs and receiving login data.
added mainPage draft
Added using ConnectionManager in index.html, removed Connect button.
Added registration on webpage