Updated version number to 0.6.0-SNAPSHOT
Merge branch 'master' into develop
Updated example 22 a little, normalized zoom in response to issue #39
Updated zoomExtent and added to methods as per #39, removed width property from zoom extent -> getrange. typos.
Added directions for hierarchical view as per #25
Merge remote-tracking branch 'origin/develop' into develop

Conflicts:
	dist/vis.js
	dist/vis.min.js
bug fix, typo fix, clarified docs
added click and doubleclick events and extended events documentation
removed superfluous events
svg timeline experiment
svgTimeline v0.1
initial working version
svg timeline work and refactoring.
renamed frameResize to resize
Added physics configuration, removed svgTimeline from this branch
Merge remote-tracking branch 'origin/develop' into alex_dev
Merge remote-tracking branch 'origin/develop' into develop
removed SVGtimeline from jake
Merge remote-tracking branch 'origin/develop' into develop
finalized for release