Merge branch '0.9.7'

readme.md

@@ -77,6 +77,9 @@ glm::mat4 camera(float Translate, glm::vec2 const & Rotate)
 #### [GLM 0.9.7.4](https://github.com/g-truc/glm/tree/0.9.7) - 2016-XX-XX
 ##### Fixes:
 - Fixed asinh and atanh warning with C++98 STL #484
+- Fixed polar coordinates function latitude #485
+- Fixed outerProduct defintions and operator signatures for mat2x4 and vec4 #475
+- Fixed eulerAngles precision error, returns NaN  #451
 
 #### [GLM 0.9.7.3](https://github.com/g-truc/glm/releases/tag/0.9.7.3) - 2016-02-21
 ##### Improvements: