GC Percentage rendering, CSS fixes

Signed-off-by: Joseph Lee <josel@pdx.edu>
Added base RSCU scatterplot

Signed-off-by: Joseph Lee <josel@pdx.edu>
Merge branch 'frontend'

Conflicts:
	grails-app/controllers/webapp/MainController.groovy

Signed-off-by: Joseph <josel@pdx.edu>