ownCloud: Add neon include dir variable to the compile include dirs.

modules/CMakeLists.txt

@@ -62,6 +62,7 @@ install(
 endif (LIBSSH_FOUND)
 
 if (NEON_FOUND)
+    include_directories( ${NEON_INCLUDE_DIRS} )
     macro_add_plugin(${OWNCLOUD_PLUGIN} csync_owncloud.c)
     target_link_libraries(${OWNCLOUD_PLUGIN} ${CSYNC_LIBRARY} ${NEON_LIBRARIES})