We already have the convenient degrees() and radians() functions to convert
between angle formats. This commit involves a lot of refactoring here and
there and I may have missed some places where conversions were needed. But
hopefully there aren’t may such places.

This lets us use the code for non-float variable types. I also got
rid of the mat4-to-quat code so that users are forced to use the
mat3-to-quat code and possibly discover places where their code is
suboptimal.

scene so that g_scene can be deprecated later.

Camera & vector.cpp : Fixed shifted_perspective crash with almost zero FOV.

numeric : Added SmoothClamp & swap
camera : fixed target&up issues and added screen-scale factor.
touky_demo : correct camera integration & first pass on uro refactor. Also added Makefile to vcproj

- removed 58 CR characters
 - removed 8 trailing whitespaces
 - replaced 2 tabs with spaces
 - fixed 1 svn:eol-style properties

in the scene where we can push and pop cameras.

Added RadialJitter("rj") to EasyMesh parser.

Scene and Camera classes.