EVEN FROM THE GRAVE I WILL NOT STOP TAMPERING WITH RANGER (also bugfixes)

Things that changed:

* String comparison bugfixes (switch to strcmp instead of ==)
* Widescreen Mjolnir sprites + no more black pixels on said sprites
* Mjolnir, if you survive an underwater whack, continues the swing animation rather than going straight back to Ready
* QRL dropped down to 5 rockets on pickup
* Grenades and rockets do 5 more damage in coop, so demons no longer survive rockets with 1 HP
* samsara_pistolammo has the QSG only use shells every other shot
* Quake 1 megahealth sound
* Removed packagepk3.py for being deadweight
* ConsoleCommand("nextmap") -> Exit_Normal(0)
* Added Caleb