Finishing touches on PackageBrowser (Softkey 1.0)

Summary:
Keep description view but make visibility gone. Adapter needs
this view to pass to result. Return intent sends flattened
ComponentName instead of wonky uri scheme.

Test Plan: this part of softkey 1.0 is solid

Reviewers: synergy

CC:
Pass app label in result intent

Summary:
Keep description view but make visibility gone. Adapter needs
this view to pass to result. Return intent sends flattened
ComponentName instead of wonky uri scheme.

Package Browser return intent give us a app label

Much easier than using ComponentName and 5 PM calls lol

Test Plan: this part of softkey 1.0 is solid

Reviewers: synergy

Differential Revision: http://review.codefirex.com/D540