added BrainScript to Linux Makefile INCLUDEPATH

Makefile

@@ -50,7 +50,7 @@ endif
 # The actual compiler/linker flags added can be viewed by running 'mpic++ --showme:compile' and 'mpic++ --showme:link'
 CXX = mpic++
 
-INCLUDEPATH:= Common/Include Math/Math MachineLearning/CNTK
+INCLUDEPATH:= Common/Include Math/Math MachineLearning/CNTK BrainScript
 CPPFLAGS:= -D_POSIX_SOURCE -D_XOPEN_SOURCE=600 -D__USE_XOPEN2K
 CXXFLAGS:= -msse3 -std=c++0x -std=c++11 -fopenmp -fpermissive -fPIC
 LIBPATH:=