Add pixel dilation for certain glyphs, will overlap now instead of having a gap
amend distance_dilate to fields of imagergba
Add distance_dilate property
Grab from glyphspec
fix image to use glyphspec too
remove console.logs
merge master and fix up
docs for dilate parameter
use false for default value of dilate attribute
Merge pull request #439 from ContinuumIO/feature/dilate

Option to dilate pixel distances on some glyphs