Added inequality operator for vec2, vec3 and vec4 classes. Removed midPoint function
Merge remote-tracking branch 'upstream/master'
Reverted changes to vec2.c vec2.h. fminf not supported by VS2010: changed to (a<b)?a:b;
Merge pull request #30 from dhontecillas/master

pre C++11 fix for aabb.c and division by 0 fix