Add menuconfig

This branch is for myself, to have fun.
The menuconfig split from linux-3.8.2.

And i was removed some unused files.
For my own, just want to have an 'menuconfig' and gen the '.config' file and 'autogen.h'

That all, enough for me.
Update Makefile

Fix 'X86' to 'x86'
Add calc.py

This is and example python calculator of
 <python and tinker programming>
Merge remote-tracking branch 'origin/menuconfig'
Merge remote-tracking branch 'origin/py_calc'