fix bug on --refs option
fix initialization bug
Change back to maphash, no curr_chunk setting is required either. Updated release notes
Add example usage of XYPlot onClick, add examples of custom about page and view details dialogs, and example of multiline callback for VCF. See #489 and #494 for reference
Convert samtools master to samtools 0.1.20 -- final version without htslib. Fixed #501
Add travis CI badge
Merge branch 'master' of https://github.com/gmod/jbrowse

Conflicts:
	setup.sh