Fix missing ancestor modes in :listkeys, recognize paths like c:/ on Windows®, and elide redundant -group=user in :style serialization.

common/content/dactyl.js

@@ -1296,7 +1296,7 @@ var Dactyl = Module("dactyl", XPCOM(Ci.nsISupportsWeakReference, ModuleBase), {
         return urls.map(function (url) {
             url = url.trim();
 
-            if (/^(\.{0,2}|~)(\/|$)/.test(url)) {
+            if (/^(\.{0,2}|~)(\/|$)/.test(url) || util.OS.isWindows && /^[a-z]:/i.test(url)) {
                 try {
                     // Try to find a matching file.
                     let file = io.File(url);

common/content/mappings.js

@@ -689,7 +689,7 @@ var Mappings = Module("mappings", {
             iterate: function (args, mainOnly) {
                 let modes = [this.getMode(args)];
                 if (!mainOnly)
-                    modes = modes.concat(modes[0].bases);
+                    modes = modes.concat(modes[0].allBases);
 
                 let seen = {};
                 // Bloody hell. --Kris