Added EXT_frag_depth conformance test
Updated EXT_frag_depth test based on feedback
Forgot to update the date
Removed more unnecessary code from EXT_frag_depth test
Merge pull request #278 from toji/ext_frag_depth

Added EXT_frag_depth conformance test
Make floating point texture tests test filtering
Merge pull request #279 from greggman/fix-float-tests

Make floating point texture tests test filtering
Updated reference to old WebGL registry at cvs.khronos.org/... to www.khronos.org/.
Merge pull request #280 from kenrussell/cvs

Updated reference to old WebGL registry at cvs.khronos.org/... to www.kh...
Deleted obsolete snapshot of WebGL spec, mainly because it contained links to cvs.khronos.org/ that it's undesirable for search engines to find.
Merge pull request #281 from kenrussell/obsolete

Deleted obsolete snapshot of WebGL spec, mainly because it contained lin...