Import fixes from groups branch.

common/content/commands.js

@@ -1330,7 +1330,7 @@ var Commands = Module("commands", {
                                     args["-description"],
                                     Command.bindMacro(args, "-ex",
                                         function makeParams(args, modifiers) ({
-                                            args:  {
+                                            args: {
                                                 __proto__: args,
                                                 toString: function () this.string,
                                             },

common/content/events.js

@@ -57,8 +57,10 @@ var ProcessorStack = Class("ProcessorStack", {
                 events.feedingKeys = false;
             }
 
-            for (var res = this.actions[0]; callable(res);)
-                res = res();
+            for (var res = this.actions[0]; callable(res);) {
+                res = dactyl.trapErrors(res);
+                dbg("ACTION RES: " + res);
+            }
             result = res === Events.PASS ? Events.PASS : Events.KILL;
         }
         else if (result !== Events.KILL && !this.actions.length &&

common/content/modes.js

@@ -424,7 +424,7 @@ var Modes = Module("modes", {
 
         hidden: false,
 
-        input: false,
+        input: Class.memoize(function () this.bases.length && this.bases.some(function (b) b.input)),
 
         get passUnknown() this.input,