fixed memory leak, ICU libraries are now optional

CMakeLists.txt

 
 target_link_libraries(${EXECUTABLE_NAME} ${LIBRARY_NAME} )
 
-set( SLOP_UNICODE TRUE CACHE BOOL "To enable or disable unicode support, really should be left to TRUE since old nvidia drivers crash with it off." )
-if ( SLOP_UNICODE )
+find_package(ICU COMPONENTS uc)
+set( SLOP_UNICODE TRUE CACHE BOOL "To enable or disable unicode support." )
+if ( SLOP_UNICODE AND ICU_FOUND )
     # ICU is required for old nvidia drivers to work for whatever reason.
-    find_package(ICU REQUIRED COMPONENTS uc)
     add_definitions(-DCXXOPTS_USE_UNICODE)
     include_directories( ${ICU_INCLUDE_DIR} )
     target_link_libraries(${EXECUTABLE_NAME} ${ICU_UC_LIBRARIES} )

src/x.cpp

         height += ldata[2] + ldata[3];
         x -= ldata[0];
         y -= ldata[2];
+        XFree( data );
         return glm::vec4( x, y, width, height );
     } else {
         // Either the WM is malfunctioning, or the window specified isn't a window manager frame.