Updated cross-compile install location
Updated cross-compile install location
Added base-level project files for the Windows 8.0/RT variant of WinRT

Support for .png and .bmp files were added via this change.  PNG support was
added via the copies of libpng and zlib in the "external" directory.  No changes
to either external library (libpng or zlib) were required; the only changes
requred were the addition of Visual C++ project files.

Still TODO:
- add project files for Windows Phone 8
- add project files for Windows 8.1 (via VS2013-based project files)
- add support for other image formats (JPEG, WebP, etc.)

To enable:
1. add each 'VS2012' project file in VisualC-WinRT to the app's VS2012 solution
2. link the app to SDL_image via a Visual C++ Reference (right click on the
app's project, choose References, click Add New Reference, check the SDL_image
box, click OK).
Added base-level project files for the Windows Phone 8.0 variant of WinRT

Support for .png and .bmp files were added via this change. PNG support was
added via the copies of libpng and zlib in the "external" directory. No changes
to either external library (libpng or zlib) were required; the only changes
requred were the addition of Visual C++ project files.

Still TODO (for SDL_image on Windows Phone 8):
- add support for other image formats (JPEG, WebP, etc.)
- add support for Windows Phone 8.1, if needed (once enough details on it
emerge)

To enable:
1. add each 'VS2012' project file in VisualC-WinPhone to the app's VS2012
solution.
2. link the app to SDL_image via a Visual C++ Reference (right click on the
app's project, choose References, click Add New Reference, check the SDL_image
box, click OK).
Fixed bug 2501 - SDL_image 2 not building JPEG support for Android x86
Fixed bug 2490 - [PATCH] Fix options for android builds

Ben Boeckel

Currently, to override the SUPPORT_* options, one must patch SDL_mixer's Android.mk to set them to false. This patch makes it so that the user may set the options in the top-level jni/Android.mk file without having to patch SDL_mixer.
Fixed bug 2454 - Crash when loading some XPM files

Jeff Pohlmeyer

The attached XPM file causes a segfault in the "showimage" test program.
Added JPEG support for WinRT + Windows Phone 8

Platform support for Windows 8.0/RT and Windows Phone 8.0 was added.

TODO: Add support for Windows 8.1/RT, Windows Phone 8.1, and other 'Universal'
platforms.
Cleaned up and rearranged WinRT project file structure.

All WinRT projects have been merged into a single directory, "VisualC-WinRT",
with platform-specific variants in subdirectories off of it.  WinRT development
currently requires muliple project types, one for Windows 8.0, a second for
Windows Phone 8.0, and a third, possibly a fourth, for Windows 8.1 and/or
Windows Phone 8.1 targets.

The first two, for Windows 8.0 and Windows Phone 8.0 targets, are now in place,
inside "WinRT80_VS2012" and "WinPhone80_VS2012" subdirectories.  Both require
the VS2012 toolchain(s).

Projects that use SDL_image/WinRT will need to have existing references to
SDL_image, and its dependencies libraries, removed and then re-added.  This can
be done by:
1. removing the MSVC projects for SDL_image, libpng, jpeg, and zlib (for WinRT)
2. re-added the MSVC projects for SDL_image, libpng, jpeg, and zlib (for WinRT)
3. right-clickong on the app, or projects that use those libraries, choosing
References, removing the references to any of these projects (they'll likely
be highlighted with an exclamation mark), then re-adding them

TODO:
- add support for Windows 8.1 and Windows Phone 8.1 targets, using
Microsoft's new "Universal" app support, if possible.  These will be added to
a new subdirectory, or subdirectories (if more than one sets of projects are
needed, hopefully not), of "VisualC-WinRT".
- add a README.txt file inside VisualC-WinRT that explains which directories
are used for which targets, along with some basic setup info
WinRT: updated to use latest SDL/WinRT project structure
WinRT: added support for WebP loading
Updated iOS deployment target to iOS 5.1
WinRT: added project files for Windows 8.1 and Windows Phone 8.1 targets
Made Win[Phone] 8.1 project file names more consistent with 8.0 counterparts

This renames the two, main pairs of SDL_image project files, for Windows 8.1
and Windows Phone 8.1, to have file names that are a bit more consistent with
their 8.0 counterparts.  I.e. "SDL_image-<platform>.<ext>"

--HG--
rename : VisualC-WinRT/WinPhone81_VS2013/SDL2_image-WinPhone81.vcxproj => VisualC-WinRT/WinPhone81_VS2013/SDL_image-WinPhone81.vcxproj
rename : VisualC-WinRT/WinPhone81_VS2013/SDL2_image-WinPhone81.vcxproj.filters => VisualC-WinRT/WinPhone81_VS2013/SDL_image-WinPhone81.vcxproj.filters
rename : VisualC-WinRT/WinRT81_VS2013/SDL2_image-WinRT81.vcxproj => VisualC-WinRT/WinRT81_VS2013/SDL_image-WinRT81.vcxproj
rename : VisualC-WinRT/WinRT81_VS2013/SDL2_image-WinRT81.vcxproj.filters => VisualC-WinRT/WinRT81_VS2013/SDL_image-WinRT81.vcxproj.filters