Merge jK & Clecn up & utf-8 support in chat
Merge branch 'develop' of https://github.com/jk3064/spring into develop

Conflicts:
	rts/Rendering/Fonts/CFontTexture.cpp
	rts/Rendering/Fonts/CFontTexture.h
	rts/Rendering/Fonts/LanguageBlocksDefs.h
Padding
a bit CBitmap work
font: delay texture uploading & readd shadows
fix padding after my commit
optimize float arithmetic in string rendering