qpkg: added copyright headers and changed name to emphasize speediness

- Makefile, gobble.h, gobble.c, id.h, id.c, prereq.h, prereq.c, qpkg.h,
  qpkg.c, rbtest.c: added copyright header
- id.c: include jrb.h (for completeness)
- README: change name from "Query package databases" to "Quick package
  database query"

qpkg/Makefile

@@ -1,3 +1,15 @@
+#
+# Makefile - Makefile of qpkg
+#
+# Written 2010 by Werner Almesberger
+# Copyright 2010 by Werner Almesberger
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+
 SHELL = /bin/bash
 
 OBJS_qpkg = gobble.o id.o prereq.o qpkg.o jrb.o