Added timeline range functionality.
Merge branch 'master' into time_range

Conflicts:
	timeline/ChronoGrapher/chronographer-addon/src/main/java/org/vaadin/chronographer/ChronoGrapher.java
	timeline/ChronoGrapher/chronographer-demo/src/main/java/org/vaadin/chronographer/demo/SimpleTimelineExample.java
Removed deprecated calls for extracting fields from the date.
Fixed some warnings...
Modified configuration to build widgetset for all supported browsers.