Add to the 'thanks' list, and fix formatting.

The very definition of a shameless plug?
Spec how texImage2D sets the texture width and height depending on the element

It is worthwhile to spec this explicitly to avoid any ambiguity,
especially for less straightforward cases like SVG images.
Merge pull request #511 from jdashg/more-credit

Add to the 'thanks' list, and fix formatting.
Merge pull request #512 from NVIDIA/teximage2d-width-height-spec

Spec how texImage2D sets the texture width and height depending on the element
Show translated shader source using WEBGL_debug_shaders in glsl tests

The translated shader source can be useful when debugging shader
translator or GPU driver issues, so display it alongside the original
source if WEBGL_debug_shaders is available.

Also includes some cleanup of related code.
Refactor shader logging to reduce code duplication

Some tests that did not include shader logging before also get shader
logging.
Merge pull request #514 from NVIDIA/use-debug-shaders

Show translated shader source using WEBGL_debug_shaders in glsl tests