Log Message:
Update to 0.18.0:

version: 0.18.0
date: Thu Dec 20 17:50:41 CET 2012
changes:
	- Update to isl 0.11.1
	- clast annotations for openmp and vectorization
	- statement-wise loop separation
	- clast traversal and node filtering support
	- Do not call some deprecated isl functions
	- Support for OpenSCoP coordinates extension

version: 0.17.0
date: Mon Dec 12 00:51:44 CET 2011
changes:
	- Support openscop as input format
	- update isl backend to changes in isl 0.08
	- Add CLOOG_ prefix to LANGUAGE defines in public header files
	- Replace cloog_union_domain_from_isl_union_set() with
	  cloog_union_domain_from_isl_set()
	- Allow to build CLooG from gmp build directory
	- Smaller improvements

version: 0.16.3
date: Wed Jul 13 18:18:19 CEST 2011
changes:
	- update isl backend to recent changes in isl
	- add support for unrolling