Committing some cleanups by avindra:

- fix numerous warnings
- make some variables unsigned
- remove redundant code and header inclusions
- make code more compact in lots of cases

Committing some additional changes by myself:
- additional header cleanups
- cleanup DX11 initialization/shutdown process (hinted at by avindra)
- Remove the cgD3D9 stuff from Externals since it's no longer needed

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@5903 8ced0084-cf51-0410-be5f-012b33b47a6e

Source/Core/InputCommon/Src/UDPWiimote.cpp

@@ -277,9 +277,9 @@ void UDPWiimote::broadcastPresence()
 void UDPWiimote::getAccel(float &_x, float &_y, float &_z)
 {
 	d->mutex.Enter();
-	_x=x;
-	_y=y;
-	_z=z;
+	_x=(float)x;
+	_y=(float)y;
+	_z=(float)z;
 	d->mutex.Leave();
 	//NOTICE_LOG(WIIMOTE,"%lf %lf %lf",_x, _y, _z);
 }