can now specify min and max for box plots via factory
Merge branch 'develop' of https://github.com/Caleydo/caleydo.git into
develop

Conflicts:
	org.caleydo.view.histogram/src/org/caleydo/view/histogram/v2/ListBoxAndWhiskersElement.java
	org.caleydo.view.histogram/src/org/caleydo/view/histogram/v2/internal/BoxAndWhiskersElementFactory.java