Update Readme

Giving some more detailed information about the installation process.
Update README
python: improve README for cython binding
Fix the X86_REL_ADDR macro in x86.h
Merge pull request #75 from enzolovesbacon/fix_X86_REL_ADDR_macro

Fix the X86_REL_ADDR macro in x86.h
Merge branch 'next'
Merge branch 'next'
diet.h depends on config.mk. patch by Pancake