python: bump package version to 3.0.3 (setup.py)

Merge pull request capstone-engine#340 from danghvu/master

Fix a bug in Cython due to renaming

RELEASE_NOTES

python: add instructions for PyPi packages

- Fixed memory leak for cython disasm functions

x86: support CR9-CR15 registers

update ChangeLog for 3.0

Makefile: check target should also run test_iter

Merge branch 'xcodeproj' of https://github.com/zneak/capstone into xcode

x86: properly calculate absolute addresses for relative CALL & JMP - …

…for AT&T syntax. thanks Perdo, again