Fix shared walkthrough url

Ommit "/start" from the url sharing, as this is not the proper url to share
Fix replacing /start from non-url encoded urls
Merge pull request #14 from Coornail/fix/411-end-of-walkthrough-share-dialog

Fix/411 end of walkthrough share dialog
Merge branch 'master' of github.com:Pronovix/WalkHub-resources

Conflicts:
	compiled.js
	src/javascript/walkthrough/controller.js