OpenGL2: Parallax corrected cubemap (cheaper trick)
Revert "DMA 44100Hz needs more memory for sound buffers"

This reverts commit 0e6632f464c08dcb76f26a52f33d97228e64fda1.

Cause crashes if com_soundMegs is 32.
Merge remote-tracking branch 'ioquake3/master'

Conflicts:
	code/renderergl2/tr_glsl.c
	code/renderergl2/tr_local.h
spearmint: Increase com_soundMegs from 8 to 32

Fixes ct3tourney3 with s_sdlSpeed 44100 com_soundMegs 8 running
at 2 FPS because it free and loads sounds from disk each frame.
spearmint: Get version for PNG metadata from engine

Get version for PNG metadata from engine, instead of using
what tr_image_png.c was compiled with.
spearmint: Git version isn't in cl_console, so stop touching it

Spearmint moved displaying console to cgame, which gets version
from "version" cvar.