Fixed an obsolete access to ``obj_ptr`` attribute.
Fallback on file copy on failure to symlink boost. Fixed install error on Windows 7 with Python 3.3 caused by:
    symlink("boost", bpl_project_boost_inc)
OSError: symbolic link privilege not held
Merge pull request #24 from blep/master

Fallback on file copy on failure to symlink boost.
Merge pull request #23 from Manticore/obsolete-obj-ptr

Fixed an obsolete access to ``obj_ptr`` attribute.
Add Enja tutorial particles example
Merge pull request #25 from benshope/master

Add Enja Tutorial Particles Demo
Merge branch 'master' into cffi

Conflicts:
	pyopencl/__init__.py