clean up create_addr, and use a structure instead of a large parameter list

make create_addr return the peer's outkey, so dynamic realtime peers can use keys for calls (bug #4431)
add key support for switch connection strings
use a common dial/switch string parser instead of three copies (none of them identical)
make doxygen docs cover the entire source base


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5833 65c4cc65-6c06-0410-ace0-fbb531ad65f3

contrib/asterisk-ng-doxygen

@@ -451,7 +451,15 @@ WARN_LOGFILE           =
 # with spaces.
 
 INPUT                  = ./ \
-                         include/asterisk
+                         include/asterisk \
+			 channels \
+			 funcs \
+			 apps \
+			 cdr \
+			 codecs \
+			 formats \
+			 pbx \
+			 res
 
 # If the value of the INPUT tag contains directories, you can use the 
 # FILE_PATTERNS tag to specify one or more wildcard pattern (like *.cpp