refer back to the main repo for docs

Conflicts:
	README.md
update assimp to v3
static link assimp
Added assimp headers, libs and dll from the 3.0 SDK
static builds on mxe only
package and build targets
Move in win32 libs/dlls/headers from the main pioneer repository
optionally build statically on non-mxe builds
clean the world
Add sigc libs compiled with iterator debugging disabled
Update win32 GLEW to 1.9.0 (released August 2012)
add glew for static link
MXE has a perfectly competent static glew, use it
remove GLEW, its now bundled in core
Initial commit of the SDL 2.0 files
build sdl2
SDL2_image
don't build sdl2 on mxe, it has a perfectly good sdl2 port
Merge branch 'sdl2'
force sdl2 static build