Fix the include-ancestor-masks config option
add config option to allow dither
Merge pull request #215 from adobe-photoshop/jrb/dither

add config option to allow dither
wip
Fix layercomp updating
Merge branch 'iwehrman/v2-layercomps' of https://github.com/adobe-photoshop/generator-assets into iwehrman/v2-layercomps

Conflicts:
	lib/dom/layercomp.js