Merge pull request #6 from uipo/master

Canges after testing Validator
Lobby stuff
Minor changes
GitHub does not change capitalization
There we go
Revert "There we go"

This reverts commit c92c55f380135643adde4142bba3dd6ad1eed166.
Fixed class capitalization
Changed class name to capital strt letter
Merge branch 'master' of https://github.com/MagnusHedlund/Battleships
correct call to validate in Session.java
corrected import in Validator.java
answered questions in Lobby.java
added constructor in Session.java
Client package fixes
Merge branch 'master' of https://github.com/MagnusHedlund/Battleships
changed opponentID to int in ChallengeMessage.java
changed opponentID to int in ChallengeMessage.java(#2)
updating files in server