..to avoid blending issues with white background

LoadSpriteFontTTF() --> LoadSpriteFontEx()

basic_game - update makefile

Removed glew from basic_game makefile as glew is not part of the raylib package (no glew in mingw).

enum LogType could require some revision...

Added loader webs (previously ignored)

- Removed raylib_demo (outdated)
- Removed some old examples

Some tweaks on original src files

- Removed rbmf font example
- Reviewed physac examples

Reviewed some Vector3 functions
Added auxiliary Clamp() function

Added _DEFAULT_SOURCE to CFLAGS for C99 compatibility

Reorganizing folders
Review examples
Work on makefile and loader.html

Calculate tangents when loading a mesh