Updated SDL, Bullet and OpenAL soft libs

Fixed case sensitivity problem
Fixed clang compiler problem with having the class namespace used in an inline for the == operator
Tweaked some theme stuff to be more consistent.
Added initial test of no-pie for linux
test sidestep of getTexCoord in shadergen hlsl feature so we don't assert when getting the terrain's shaderstuffs(which uses float3 instead of normal float2)

Engine/lib/openal-soft/ChangeLog

@@ -1,8 +1,24 @@
+openal-soft-1.19.1:
+
+    Implemented capture support for the SoundIO backend.
+
+    Fixed source buffer queues potentially not playing properly when a queue
+    entry completes.
+
+    Fixed possible unexpected failures when generating auxiliary effect slots.
+
+    Fixed a crash with certain reverb or device settings.
+
+    Fixed OpenSL capture.
+
+    Improved output limiter response, better ensuring the sample amplitude is
+    clamped for output.
+
 openal-soft-1.19.0:
 
     Implemented the ALC_SOFT_device_clock extension.
 
-    Implemented the Pitch Shifter effect.
+    Implemented the Pitch Shifter, Frequency Shifter, and Autowah effects.
 
     Fixed compiling on FreeBSD systems that use freebsd-lib 9.1.
 
@@ -16,11 +32,14 @@ openal-soft-1.19.0:
     Increased the number of virtual channels for decoding Ambisonics to HRTF
     output.
 
+    Changed 32-bit x86 builds to use SSE2 math by default for performance.
+    Build-time options are available to use just SSE1 or x87 instead.
+
     Replaced the 4-point Sinc resampler with a more efficient cubic resampler.
 
     Renamed the MMDevAPI backend to WASAPI.
 
-    Added support fot 24-bit, dual-ear HRTF data sets. The built-in data set
+    Added support for 24-bit, dual-ear HRTF data sets. The built-in data set
     has been updated to 24-bit.
 
     Added a 24- to 48-point band-limited Sinc resampler.