maintenance release

Minor cleanup

Removal of unused methods and properties, and a doc cleanup.
Version bump

maintenance release

Merge pull request #336 from gpujs/335-missing-z-index-issue

Fix 335 by checking `output` setting at build time.

maintenance release

1.4.10

Bump version number for release

maintenance release

1.4.9

Bump version number for release

maintenance release

1.4.8

Bump version number for release

maintenance release

1.4.5

Some related changes to #243 that make index selection based off the …

maintenance release

Handle GPU.input in CPU

maintenance release

Merge pull request #321 from gpujs/319-infinity

fix #319 add rudimentary infinity handling

maintenance release

Merge pull request #317 from gpujs/316-housecleaning

fix #316

maintenance release

Merge pull request #309 from gpujs/308-y-cpu-flip

#308 process images in reverse y on cpu