Add some tests on out of level, width and height check on the bound textures for {copy, compressed}Tex{Sub}Image
Removed failure if uniform is not found. Original GLES 2.0 tests do not enforce this, and their test data fails does not conform to this rule.
Merge pull request #340 from toji/uniform_location_fix

Removed failure in ported ES 2.0 tests if uniform is not found.
Remove old unused spec versions.

For reference r16849 is 7fd92e0caa01
and r13869 is 2b5cf32e0eb. We could add
tags for these versions if necessary.
Merge pull request #343 from grorg/remove-old-spec-versions

Remove old unused spec versions.
update the test according to Kenneth's comments
Merge pull request #339 from JunJiang/add-out-of-bound-level-and-size-test

Add some tests on out of level, width and height check on the bound textures for {copy, compressed}Tex{Sub}Image
Added new tests to texture target binding.
Merge pull request #344 from toji/texture_target_test

Added new tests to texture target binding.