Minor makefile edits

makefiles/consts.mk
-------------------
  o Fixed quote-{double,single} macros to use the correct values.

makefiles/include.mk
makefiles/lint/shell.mk
makefiles/virtualenv.mk
-----------------------
  o Inline a visual version string for quick sanity checking.

makefiles/lint/include.mk
makefiles/lint/license/
-------------------------
  o Check license agreements with the reuse command line tool.

Change-Id: I54b247805dc75b888ab5662e224261dabb01eab7
diff --git a/makefiles/lint/include.mk b/makefiles/lint/include.mk
index 357b6f5..f011e31 100644
--- a/makefiles/lint/include.mk
+++ b/makefiles/lint/include.mk
@@ -12,6 +12,7 @@
 include $(ONF_MAKE)/lint/groovy.mk
 include $(ONF_MAKE)/lint/jjb.mk
 include $(ONF_MAKE)/lint/json.mk
+include $(ONF_MAKE)/lint/license/include.mk
 include $(ONF_MAKE)/lint/makefile.mk
 include $(ONF_MAKE)/lint/python.mk
 include $(ONF_MAKE)/lint/shell.mk