Merge pull request #561 from MIT-Mobile/3.6/dev-intrepid-svoigt

3.6/dev intrepid svoigt
ShuttlesMap now uses regular pins in fullscreen iPhone and in iPad #442
Reworked map region bounding box to actually encompass path and appropriate zoom #436
Merge pull request #565 from MIT-Mobile/3.6/dev-intrepid-lwright

3.6/dev intrepid lwright
Fixed callout positioning (#492)