FindMatlab: Look for R2014b and R2015a

Modules/FindMatlab.cmake

@@ -228,6 +228,8 @@ if(NOT MATLAB_ADDITIONAL_VERSIONS)
 endif()
 
 set(MATLAB_VERSIONS_MAPPING
+  "R2015a=8.5"
+  "R2014b=8.4"
   "R2014a=8.3"
   "R2013b=8.2"
   "R2013a=8.1"