selecting a space or description scrolls the listviews
added ability to go to description and delete description from listview

fixed bug with audio canvas when adding new space
Merge branch 'valdev'
renamed DescriptionViewModel to DescriptionCollectionViewModel
renamed SpacesViewModel to SpaceCollectionViewModel
Add DialogShower Factory class

Spawns dialog windows and returns their viewmodels
Merge branch 'master' of github.com:IMDC/LiveDescribe-Desktop
Merge branch 'master' of github.com:IMDC/LiveDescribe-Desktop into valdev

Conflicts:
	LiveDescribe/LiveDescribe/ViewModel/DescriptionInfoTabViewModel.cs