Merge pull request #22 from XForms/master

Merge with Main
Merge pull request #23 from XForms/master

Merge from main
Merge pull request #24 from XForms/master

Merge from main
Merge pull request #25 from XForms/master

Merge from main
Start on iOS Charting
Added extended entry screenshot
E-mail services registered with Xamarin.Forms
Added NFC device

Currently able to start Xamarin Labs sample on WP8 by beaming from WP8
or Android device. WP8/Android to Android will open “New tag scanned”
activity on Android, the Labs app has not been yet registered to handle
the Uri.
Added E-mail, SMS & Uri open to location service

Needs some work, especially on SMS to handle the Uri formats but in
principle one can now send their location from Xamarin.Forms.Labs
through the sample application. Also opening the Uri will open system
map for the current location.
Added LaunchUriAsync method to IDevice

Mainly to overcome a bug on Xamarin.Forms WP8 platform in opening non
http(s) scheme Uri’s.

http://forums.xamarin.com/discussion/23273/device-openuri-and-wp8?new=1

The problem can be verified by changing Geolocation view models
GetDrivingDirections Labs IDevice call to Device.OpenUri method. It
will crash the application on WP8 due to invalid Uri.
ViewModel resolution update

Enhance view model resolution to allow for something like this:

    NFViewFactory.Register<MyPage, MyPageViewModel>((r) => new MyPageViewModel(r.Resolve<IMyService>()));

For convenience really to remove the need for Resolver.Resolve inside class constructors.
Added more obvious custom font to all sample projects. Added remarks to obsolete props in Extended Label. Added new property called 'FriendlyFontName' for WinPhone.
Fixed custom font capability in WinPhone ExtendedLAbelRenderer. Annotated code in Renderers where obsolete propr are covered for backward campatibility. Updated sample page to illustrate obsolete and new methods.
Removed property FontNameWP as this was never implemented and is now obsolete.
Bars and lines are being drawn
Fixed issue with multiple textblocks with custome fonts and strikethrough on WinPhone. Final version of ExtendedLabel sample page. Created screen shot.
Fixed issue with FontSize not working if FontName not specified. Also changed so that system default size would be set if size missing.
Added scroll view to allow all label samples to be seen.
Merge remote-tracking branch 'upstream/master'
Work in progress for pie chart
Merge pull request #272 from Snorvisable/master

Charting for iOS!