Merge pull request #316 from MIT-Mobile/3.6/dev-intrepid-svoigt

Added iPad tour stop detail screen
Present tours stop directions as form sheet on iPad
Make stop directions layout adjustable for iPad
Merge pull request #318 from MIT-Mobile/3.6/dev-intrepid-adolce

Display tour stop directions in iPad form sheet
Fixed background color on section headers
Made navbar/toolbar opaque
Made detail/info cell shorter and compressed text
Added title to tours iPad home
Present iPad links mail composer in a form sheet
Removed old tours code