added shellmatta_transport.c to makefile

makefile

@@ -20,7 +20,8 @@ SOURCES :=  src/shellmatta.c                \
             src/shellmatta_history.c        \
             src/shellmatta_utils.c          \
             src/shellmatta_escape.c         \
-            src/shellmatta_opt.c
+            src/shellmatta_opt.c            \
+            src/shellmatta_transport.c
 
 INCLUDES    := api .