linkresolvers should be sorted by name

[Jun Omae]

Currently, linkresolvers suggests unsorted link names. I think the suggestion should be sorted by name.

wikiautocomplete/htdocs/js/wikiautocomplete.js

@@ -78 +78 @@
 
     ], {
         appendTo: $('body'),
+        maxCount: 50
     });
 });

wikiautocomplete/web_ui.py

@@ -74 +74 @@
 
         if strategy == 'linkresolvers':
             wiki = WikiSystem(self.env)
-            completions = []
-            for provider in wiki.syntax_providers:
-                for name, resolver in provider.get_link_resolvers():
-                    if name.startswith(term):
-                        completions.append(name)
-            self._send_json(req, completions)
+            completions = set(name for provider in wiki.syntax_providers
+                                   for name, resolver
+                                        in provider.get_link_resolvers()
+                                   if name.startswith(term))
+            self._send_json(req, sorted(completions))
 
         elif strategy == 'ticket':
             try: