[TextureViewDemo] Fix for devices without rear camera

For devices with no camera, the user is notified.
For devices with only a front facing camera, the front is used.
[AccelerometerPlay] Background on tablet fix

Bugfix:
https://bugzilla.xamarin.com/show_bug.cgi?id=13709

On larger tablets, the background image of the AccelerometerPlay app
would only cover around half of the screen.
[Support4] Fixed issue where Tabs & Pager crashes

Fix issue where Fragments > Tabs & Pager in release mode would crash.
Remove Sample

The SPenSDK binding targets very old jar and the Samsung SDK now
has a non-compilable Java class library that fails to load by standard
Java
tools.
Updated JNIDemo sample project

Updated the JNIDemo sample project to no longer use the obsolete Google
Maps API, as there are other proper maps samples in the repository.
This sample now uses a "hello world" style activity to demonstrate the
AndroidJavaSource build action.
Replaced old JNIDemo solution with new one

Replaced old JNIDemo solution with new one (using mostly the same
code), so there wouldn't be any issues with renamed solutions and
projects.
Deleted files from the old JNIDemo

These files weren't included in the last commit for some reason.
Another file?

Not sure why the GitHub client is making me do so many commits.
Added splash screen image

Added a splash screen image to the project resources so that the
project would build (the splash screen activity was looking for the
file).
[GLNativeES30] Cleanly fails on unsupported HW

User is notified when the device does not have the hardware support for
OpenGL ES 3.0 instead of just crashing.
[GLTriangle30] Cleanly fails on unsupported HW

User is notified when the device does not have the hardware support for
OpenGL ES 3.0 instead of just crashing.
Committing to sync main branch

Opened a project and Xamarin Studio changed the .csproj (Clicking
"Discard changes" asks to delete the file)
[OsmDroidBindingExample] Jar Update

Updated jar files and binding to fix an issue with map tiles not
showing up due to a 403 error

Bugfix:
https://bugzilla.xamarin.com/show_bug.cgi?id=19637
[OsmDroidBindingExample]Manifest/csproj update

Meant to be included in the previous commit so that it recognizes the
jar changes
Migrating the MultipleAPK project into monodroid-samples.

commit c67d8e8f1a600bdc1137210bc512573e9293fdf9
Author: Tom Opgenorth <tom@opgenorth.net>
Date:   Thu Jul 3 14:19:09 2014 -0600

    Don't be so verbose when deleting artifacts from the previous build.

commit 9bb1a82880a6a977400c0864900f66c28fa6f28d
Author: Tom Opgenorth <tom@opgenorth.net>
Date:   Thu Jul 3 12:11:39 2014 -0600

    Set the min/target SDK levels.

commit 24c43e3b04044fdd5fcb487958c298aa0935710b
Author: Tom Opgenorth <tom@opgenorth.net>
Date:   Thu Jul 3 11:51:12 2014 -0600

    Add the README.md

commit 8fbf580c491595716b83feb6ca1c62b5cd604aaf
Author: Tom Opgenorth <tom@opgenorth.net>
Date:   Thu Jul 3 11:50:05 2014 -0600

    Update the Metadata.xml

commit cdef871fa4b6fd51d1a37719c2a63b01d7913510
Author: Tom Opgenorth <tom@opgenorth.net>
Date:   Thu Jul 3 11:18:08 2014 -0600

    Create a unique AndroidManifest.XML for each APK.

commit aaf8ceb45ca1defabe6aee937060e4a2c3823327
Author: Tom Opgenorth <tom@opgenorth.net>
Date:   Thu Jul 3 10:46:37 2014 -0600

    Include the versionNumber when creating the versionCode

commit 396474ab353f6ee050c782623da6cebe4262cc4c
Author: Tom Opgenorth <tom@opgenorth.net>
Date:   Thu Jul 3 10:28:26 2014 -0600

    Specify an intermediate output path during the build for each ABI.

commit 76e18668cced4d599e52855b49419c7bbc83e2b6
Author: Tom Opgenorth <tom@opgenorth.net>
Date:   Thu Jul 3 10:01:34 2014 -0600

    Add in the OneABIPerAPK project.
Just create a package, don't sign it.
Include the ABI in the android:versionName as well.
Add a README.md
[KitKat] Update PrinterAPI hint
Added CardEmulation sample for KitKat