Updated readme.txt

readme.txt

@@ -37,8 +37,9 @@ More informations in GLM manual:
 http://glm.g-truc.net/glm-0.9.3.pdf
 
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-GLM 0.9.3.3: 2012-04-XX
+GLM 0.9.3.3: 2012-05-XX
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+- Fixed isinf and isnan
 - Improved compatibility with Intel compiler
 - Added CMake test build options: SIMD, C++11, fast math and MS land ext
 - Fixed SIMD mat4 test on GCC