In runDrawTests, disable vertex attrib array position before drawing
using quad created by wtu.

Bug ID: http://www.khronos.org/bugzilla/show_bug.cgi?id=779
Merge pull request #169 from nayankk/oes-vertex-array-buffer

Fix oes-vertex-array-object.html test
Make links relative

now that github has updated their servers to do this
Merge pull request #170 from greggman/make-links-relative

Make links relative
Renamed WEBGL_multiple_render_targets to EXT_draw_buffers per plan of OpenGL ES working group. Moved to draft status.
Merge pull request #171 from kenrussell/mrts

Renamed WEBGL_multiple_render_targets to EXT_draw_buffers per plan of Op...
Since WEBGL_lose_context extension is official now, modify the conformance
tests to test querying this extension. Remove vendor prefix after certain
grace period.
Precision type of vec4
http://www.khronos.org/bugzilla/show_bug.cgi?id=781

Fixed illegal default precision qualifier in large-loop-test and added tests of all valid and invalid default precision qualifiers in vertex and fragment shaders. Filed ANGLE bug 410 about the failure of the new tests.
Merge pull request #173 from kenrussell/precisions

Precision type of vec4
Fixed bug in test expectations of shader-with-illegal-default-precision.vert.html .
Merge pull request #174 from kenrussell/bugfix

Fixed bug in test expectations of shader-with-illegal-default-precision....
Merge pull request #172 from nayankk/context-lose

Test non-vendor prefixed WEBGL_lose_context extension string.
Fixed wording issue pointed out by Gregg Tavares in packing restrictions for uniforms and varyings.
Merge pull request #175 from kenrussell/packing

Fixed wording issue pointed out by Gregg Tavares in packing restrictions...
Per resolution of WebGL WG, and after discussion with OpenGL ES WG, made certain FBO attachment combinations mandatory, and tested this requirement in the framebuffer-object-attachment test.
Removed unused variable.
Merge pull request #176 from kenrussell/fboattachments

Per resolution of WebGL WG, and after discussion with OpenGL ES WG, made...
remove bogus commas
Merge pull request #177 from greggman/fix-comma

remove bogus commas
Added conformance test verifying out-of-bounds uniform array access per resolution of WebGL WG F2F meeting of January 28.