CleanSpec: Trebuchet

Change-Id: Ib62491ac46bdc0b63d4d9b6fa069315f42c0af66
ShortcutInfo: Don't assume all stringified items have a title

Changes to some activities (some removals due to missing apps
or layout changes, for instance) result in icon updates for
items without a title. Attempting to stringify the item object
in order to log the update and assuming a title was present
was resulting in a NPE

Change-Id: I414bbb7feaf41d13a82c630a5652a3833b12a2fc
Reload launcher on expanded desktop

Change-Id: Ia8a1e61de79e3fa6dbadad826b0bc2844368c86b
PagedView: Prevent NPE

Change-Id: Ic8f0e1b5a5800c6da13feda2255b79b3ece852e6