update to jgraptht 0.9.0
fix #1800: jogl 2.1.3
change pathwaygraph to a pseudograph to allow loops
change distribution element to provide location info
improve button bar builder for custom selection callback
Merge branch 'develop' of git@github.com:Caleydo/caleydo-dev.git into
develop

Conflicts:
	org.caleydo.datadomain.pathway/src/org/caleydo/datadomain/pathway/graph/PathwayGraph.java
	org.caleydo.internal/org.caleydo.internal.target
allow horizontal histogram
javadoc
javadoc
also scan complex objects during EventListenerManager.register
simple single horizontal bar implementation (horizontal bar with the
value for each id)
fix locators
simple improvements:
 * GLgraphics.lineStipple
 * Rect additional methods
Merge branch 'develop' of git@github.com:Caleydo/caleydo-dev.git into develop
id browser: now supporting (multi-)selection -> can be used for domino
to select individual items