Initial search implementation
Search focus on page launch
Fix sharing via context menu
Fix dupes
Add navigation properties for search, favorites
Increment version to 1.3
Add a screenshot
Add orientation lock
Trim of
Update Json.Net
Merge branch 'master' into adfree

Conflicts:
	TodayILearned/MainPage.xaml
	TodayILearned/MainPage.xaml.cs
	TodayILearned/Properties/WMAppManifest.xml