#586 Created command for adding new page; added options tab to new page
Merge branch 'dev' of github.com:devbridge/BetterCMS into dev

#586 Created command for creating new page and service for getting a a list of layouts
#586 Add new page: added options tab, modified command for creating a page

Conflicts:
	Modules/BetterCms.Module.Pages/ViewModels/Page/AddNewPageViewModel.cs
	Modules/BetterCms.Module.Pages/Views/Page/AddNewPage.cshtml