Minor edits to support repo:onf-make

Makefile
--------
  o Remove Makefile inlined include help/trailer.mk, lib sourced.

lf/include.mk
-------------
  o Mark git-submodule targets as .PHONY so they always process.
  o Use library $(banner) macro to annouce target for logging.
  o Add help text for two git-submodule targets.

requirements.txt
----------------
  o Add bashate to the list of python modules to install.

Change-Id: If35c7aac9e0deb25c0fc0ba8b158aafe78d6754f
diff --git a/Makefile b/Makefile
index a021c41..3f1954e 100644
--- a/Makefile
+++ b/Makefile
@@ -39,8 +39,8 @@
 # -----------------------------------------------------------------------
 # horrible dep: (ie -- .PHONY: $(JOBCONFIG_DIR))
 #   o Directory inode always changing due to (time-last-accessed++).
-#   o Dependent Targets always re-made due to setale dependency.
-#   o Use file inside directory as dep rather than a directory.
+#   o Dependent Targets always re-made due to stale dependency.
+#   o Use one file inside directory as dep rather than dep-on-a-directory.
 # -----------------------------------------------------------------------
 $(JOBCONFIG_DIR):
 	mkdir $@
@@ -53,8 +53,6 @@
 ##-------------------##
 ##---]  TARGETS  [---##
 ##-------------------##
-## Display make help summary late
-include $(ONF_MAKEDIR)/help/trailer.mk
 
 # make help not widely in use yet so be explicit
 help ::