[CL] Fixed doc refs and ImageFormat struct
[CL] Added v1.1, 1.2 and 2.0 documentation
[Bind] Enabled doc processing for OpenCL
[Bind] Disabled DTD validation for documentation
[Bind] Improve doc param name matching

Param names with escape characters (‘@‘) are now correctly matched.
Also fixed a string formatting bug in the error output.
[Bind] Recognize more mathml elements

Since we are not performing DTD processing for performance reasons, we
need to manually replace mathml entity references.
[CL] Regenerated bindings

Now with complete documentation!