remap: get rid of src_resize method
small mapping fix
remap: introduce struct bitmap_desc to reduce the number of params
text: remove no longer needed video page dirtying
remap: get rid of dst_resize() callback
move update region handling to render
threaded backtrace
Merge branch 'pixman' into devel

Conflicts:
	src/arch/linux/mapping/mapping.c

pixman branch has diverged too much.
Need to re-sync before continuing...