Add selecting by index to dropdown

An option can be manually selected which triggers a selected event.

	modified:   web/js/coge/colors.js
	modified:   web/js/synmap.js
Add layer selection and updating the plots

A layer can be selected and its data returned. The layer can then be
changed and then the plot can then be updated.

	modified:   web/js/synmap.js
Load the histogram after the plot renders

The histogram needs to update the plot during the initial load.
Remove duplicate Genome Information features

A link is provided to direct the user to GenomeInfo for more specific
details. All genome specific information should now be present in
GenomeInfo.

	modified:   web/OrganismView.pl
	modified:   web/tmpl/OrganismView.tmpl
Merge branch 'master' of github.com:LyonsLab/coge

Resolved Conflicts:
	web/OrganismView.pl
	web/tmpl/OrganismView.tmpl