make `trackType` in biodb-to-json.pl set the track js type
add a little menuTemplate to the Protein-coding genes track to to test menuTemplate in canvas feature tracks
oops, descriptions are supposed to use `text2Font`
bugfix for IE8
Merge branch 'master' into segments_glyph

Conflicts:
	release-notes.txt
improve canvas detection in JBrowse/has
update FileSaver.js fork
Merge branch 'segments_glyph' into combination_track

Conflicts:
	release-notes.txt