use `find` in build to find dojo/dijit nls directories
prepare-refseq.pl now supports comments in conf files, fixes #213
tweak timeout handling in HTMLFeatures

Conflicts:

	release-notes.txt
add new-plugin.pl helper script that makes a skeleton for a new plugin
bump default display timeout to 20 seconds
bugfix to feature label deletion in HTMLFeatures transfer method
working on memory usage, implement discardRange in GranularRectLayout
Merge commit '4d4637fe5a688dd1918626753851794949911251' into canvasfeatures

Conflicts:
	release-notes.txt
	src/perl5/Bio/JBrowse/Cmd/FormatSequences.pm
bugfix to BAM timeout-based feature reading
fix a lot of leaking memory when scrolling.  references #220