allows compiling with visual studio
Generalizing line algorithms for three dimensions, refactoring.
reverting changes to itype.h
Further refactoring, integer-based iterative line generation in three dimensions.
cleanup
removing tuples, tweaking continue_line to make things line up better in case debugging is needed.
MinGW-w64 has timespec already. Don't redefine it.
Add desired libraries -ljpeg and -lbz2.

Linker seems convinced they're necessary.
Import latest German translation.
Import latest traditional Chinese translation.
Merge linker fixes for win64 build.
Merge generalization and optimization of line drawing methods.

Conflicts:
	src/game.cpp
	src/mapbuffer.cpp
a == b == c does not expand to a == b && b == c.
Removing lingering c++11-isms, or das auto ist auch verbotten.
Cleanup trailing whitespace.