PR 1042: Updated GCC version

 - Updated GCC version

Author: aeskenas

README.md

@@ -29,7 +29,7 @@ RealSense ZR300
 
 ## Compatible Platforms
 
-The library is written in standards-conforming C++11. It is developed and tested on Ubuntu 16.04 x64 (GCC 4.9 toolchain)
+The library is written in standards-conforming C++11. It is developed and tested on Ubuntu 16.04 x64 (GCC 5.4 toolchain)
 
 
 ## Supported Languages and Frameworks