Win32 buildfix and warning fix.
I don't know how many pads are supposed to be supported, but I went with a reasonable number until the proper amount is committed.
Remove the const int, and fix another warning.
One more warning fix.
Allow Symbian to compile gl3stub (MAY_HAVE_GLES3).
Remove MAY_HAVE_GLES3
OSK for network setting for non-windows

Fix windows 's full screen problem too
Add missing "F"
Use TextView  instead of Choice
Attempt  to solve Travis CI build
Merge pull request #6213 from sum2012/UI

OSK for network setting for non-windows
Win32: Use CALLBACK (__stdcall) for DinputDevice::DevicesCallback. Fixes 32-bit compilation.
Merge pull request #6217 from thedax/win32-buildfix2

Win32: Use CALLBACK (__stdcall) for DinputDevice::DevicesCallback.
Merge pull request #6212 from thedax/win32-buildfix

Win32: fix three warnings.
Qt: Support Android armv6. Compiles and runs fine with gcc4.8. Creates 16MB APK but less than 10MB with Ministro.
More Qt on Android improvements.
Add an experimental sync to keep real time sync.

May help input, audio, and network related lag problems.
Make the lag sync adapt to minor variance.
Use more accurate timing between flips.

This reduces the minor jumps in speed from 99.9% -> 100.1% on Windows.
Add UI for realtime sync option.