[noissue] Extended flow functionality. Now supports a placeholder at the end of the url similiar to htResource or $resource.
The 'route' attribute in a flow-step can therefore now be configured with a placeholder like: "/someWizard/:id" where ':id' is the placeholder.
It can then be accessed with the $routeParams module.
[noissue] added unit test to test valid flow (/wizard/:placeholder) and both invalid flows (wizard/:placeholder/something and wizard/:placeholder/:anotherPlaceholder)
[noissue] added unit test to test valid flow (/wizard/:placeholder) and both invalid flows (wizard/:placeholder/something and wizard/:placeholder/:anotherPlaceholder)
Merge branch 'Placeholder_for_flow_routes' of https://github.com/magruene/twigs into Placeholder_for_flow_routes

Conflicts:
	src/twigs.flow.js
Merge branch 'Placeholder_for_flow_routes' of https://github.com/magruene/twigs into magruene-Placeholder_for_flow_routes
now multiple placeholders are supported