Changed default BoxTypeTraits. Added convenience VectorTraits typedef and  todo to BoxTraits.
Changed default BoxTypeTraits. Added convenience VectorTraits typedef and 
todo to BoxTraits.

code-google-com/cortex-vfx,ruschelp/cortex-vfx,ruschelp/cortex-vfx,code-google-com/cortex-vfx,ruschelp/cortex-vfx,code-google-com/cortex-vfx,code-google-com/cortex-vfx