added DB and User interfaces
added interface realization stubs

and other minor changes
loadUser, addUser implementations, GameUser
Merge pull request #11 from beral/develop

Develop to DBinterface
added junit DB test template

little changes in jsp pages
added testAddUser JUnit test

NB: sqlite needs jar's. url for sqlite DB should be changed before using
on the server
implemented GameDB

GameDB interface realization done
Merge branch 'DBinterface' into develop
Login, Register and part of the Index servlets added with web.xml