A bunch of changes like

1) Freemarker versions of Co-PI visualizations. CoInvestigator.ftl, CoPIPersonLevel.ftl, person_level_fm-copi.js.
2) Styling changes to Temporal graph.
3) Adding co_author, co_pi and temporal graph icons.
4) ftls related to sparklines. (CoAuthorship and CoPI)
5) Styling changes to CoAuthor/CoPI visualizations -- page.css, coauthor_style.css, coinvestigator_style.css

productMods/js/visualization/entityComparison/constants.js

@@ -69,6 +69,9 @@ var FlotOptions = {
 			tickSize : 1,
 			tickDecimals : 0,
 			min : 0
+		},
+		grid : {
+			borderColor : "#D9D9D9"
 		}
 };