fix some warnings
packet debug output belongs in the right debug area
use uint16_t
fix tile renderer calculations to use zoom in/out (view)
fix initial chunk size a bit..i think.
rm compress.{cpp,h}
view experimentations, but it breaks zoom..
zoom works great now
(cherry picked from commit 0b7ff7fce2e802c86c9e71cc4c26a453cdb6984a)

Conflicts:
	src/camera.cpp