Doxygen Cleanup

Start adding configuration file linking and pages.  Add module loading doxygen block.

Breaking up commits to keep it easy to track

(issue ASTERISK-20259)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@374167 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/http.c

@@ -30,6 +30,15 @@
  * \ref AstHTTP - AMI over the http protocol
  */
 
+/*!
+ * \li The core module http uses the configuration file \ref http.conf
+ * \addtogroup configuration_file
+ */
+
+/*! \page http.conf http.conf
+ * \verbinclude http.conf.sample
+ */
+
 /*** MODULEINFO
 	<support_level>core</support_level>
  ***/