add auth user and doc cleanup

src/mod/applications/mod_httapi/mod_httapi_doc.txt

@@ -234,10 +234,10 @@ temp-action	    : Change url to submit to. just for the next loop.
 
 
 <log level clean action>
-		    : Exit the httapi application and continue in the dialplan.
+		    : Write a log line to fs_cli, console, logs, etc.
 ATTRS:
 level               : The log level to use.
-clean               : If true do not pring log prefix.
+clean               : If true do not print log prefix.
 action		    : Change url to submit to.
 temp-action	    : Change url to submit to. just for the next loop.
 
@@ -259,7 +259,7 @@ permanent	    : Add as a permanent param or just once.
 
 
 <voicemail action temp-action check auth-only profile domain id/>
-                    : Get a Channel variable (depends on permissions)
+                    : Call the voicemail app without requiring "execute" permissions
 
 ATTRS:
 action		    : Change url to submit to.