MV $arch lib adm rc usr in root/
* sys/src/mkfile.proto: adjust
* .gitignore: CEs
MV man doc in docs/
MV sys/include at the top
* sys/include: have to make symlink for now
* sys/src/include: delete
* pad.txt: notes
* sys/src/cmd/mkfile:
MV to lib_core lib_graphics lib_networking lib_misc lib_math
* sys/src/NOTICE: dupe
MV to kernel/
MV many cmd/ to assemblers/ linkers/ compilers/ ...
MV to security/lib_xxx
MV more libs, security/ windows/
MV more stuff lib_thread, windows/, etc
improve sys/lib/, reorganized a bit
* mkfile.proto: at the top
consolidate all x.out.h in include/, avoid relative path include issues
MV lots of cmd/ and other/cmd/