On some layers, we use an origin shift to improve precision.  We often want pixel-perfect alignment at integer zoom levels.  Both of these features adjust the camera view matrix send to a shader.  If the origin is applied first, and a layer has a shifting origin (since we often will take the origin to be a vertex somewhere in that layer), then small variations in the origin computation can result in an exact 1 pixel jitter in the alignment rounding function.  By performing the alignment first, this does not happen.

Some types of uniforms could defined but could not be used in a WebGL program.  This has been fixed.  Setting default uniform names uses a simpler comparison.  The set function has been simplified.  A generic uniform can now be created as a function call as well as using new.

Perform pixel alignment before uniform origin shift.

Fixed a pixel-alignment issue.

Version 0.3.9.

Doing so emits a GL error, and it is useful to allow them.  For instance, a degenerate polygon can result in zero triangles.

Don't draw zero-length buffers.

Don't draw zero-length buffers.

Version 0.3.10.

Remove unused code

This resolves a security warning on GitHub.  The new version of jQuery
should do no harm (or give any benefit).

Before, we pulled these from github from the test process, but the
mechanism we were using is no longer working, probably due to permanent
redirects to https.  Instead, have cmake get the files.

Update to a newer jquery.

When removing an actor, cleanup after it so it can be moved to another
renderer.

Improve cleanup.

Update to version 0.3.11.