Merge pull request #68 from alaframboise/master

Fixed collapse expand toggling and small css issue
Limit color space to 256 (only ~140 used in image), run optimization.
Merge pull request #70 from scw/master

Recompress image on README
Fixed toggling
Fixed popup code, now lets you load feature service different endpoints
Merge pull request #72 from alaframboise/master

Update gh-pages