bjz/cgmath-rs — pull request #146 by jameson-ernst (2014-11-25 04:31:52+00:00)
Title: Fixes for trait ambiguity and num reform

Rotation and Transform had a conflict when attempting to call "concat." I think this is a conflict with StringVec, but I'm not entirely sure of that. In any case, disambiguating the call fixes it.
Also, removed use of deprecated Float methods, using f32/f64::consts instead.