doc: relocate AUTHORS and ChangeLog

Part of project cleanup-root

Signed-off-by: Joachim Wiberg <troglobit@gmail.com>

doc/AUTHORS

@@ -0,0 +1,13 @@
+Current Maintainer(s):
+ * Joachim Wiberg <troglobit@gmail.com>
+
+Major Contributors:
+ * Tobias Waldekranz <tobias@waldekranz.com>
+ * Mattias Walström <mattias.walstrom@westermo.se>
+ * Jonas Johansson <jonas.johansson@westermo.se>
+ * Jacques de Laval <jacques@de-laval.se>
+ * Magnus Malm <magnusmalm@gmail.com>
+
+Original Author(s):
+ * Claudio Matsuoka <cmatsuoka@gmail.com>
+

doc/Makefile.am

@@ -1,4 +1,6 @@
 SUBDIRS         = config
+EXTRA_DIST      = AUTHORS ChangeLog.md
+
 docsdir        := @docdir@/doc
 dist_docs_DATA  = build.md cmdline.md commands.md conditions.md 	\
 		  distro.md example.md features.md index.md initctl.md	\