Change binary output path to use CMake variable

Tools that use CMake's EXECUTABLE_OUTPUT_PATH variable to
determine which binary to launch for debugging may be confused
by a relative path, so use CMake variable PROJECT_BINARY_DIR
instead.

shared_memory/CMakeLists.txt

@@ -43,4 +43,4 @@ IF(UNIX)
 	ADD_DEFINITIONS(-fPIC)
 ENDIF(UNIX)
 
-SET(EXECUTABLE_OUTPUT_PATH ../Bin)
+SET(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/Bin)