adjusted sword offsets and camera resolution

yeah
hit spark added and appearing in front of the rat properly. refactored
the ratlogic to use moblogic out of the mob abstract. Added method to
mobvsweaponhandler to get point of contact from the weapon collision,
and store it in the mob itself as lastContactx and lastContacty.
Added shadows to rat and hero

still working on the chainsaw rat. Mostly cosmetic stuff, wanted to push
the shadows
Fixed gradle build
Fixed gradle and started new base line
Merge pull request #12 from Oonej/master

Updated gradle to work properly.