Heatmap integration start
RModule integration and ImperialHeatmapServices
Fix exception for empty class
Merge branch 'refs/heads/master' into ImperialBranch

Conflicts:
	application.properties
	grails-app/services/com/recomdata/transmart/data/export/PostgresImperialHeatmapService.groovy
	web-app/dataExportRScripts/GeneExpression/Microarray.R