Fix transitions
Buy this app task
Fix menu null check
Small fix to disable transition on error
Fix about page
Check in .gitattributes
Normalize line endings
Fix transitions again
Fix tile sizes, increase version to 2.4
Merge branch 'master' into adfree

Conflicts:
	OnThisDayApp/AboutPage.xaml.cs
	OnThisDayApp/MainPage.xaml
	OnThisDayApp/MainPage.xaml.cs
	OnThisDayApp/Properties/WMAppManifest.xml
	OnThisDayApp/Resources/Strings.Designer.cs
	OnThisDayApp/Resources/Strings.resx