add the experimental 'ALL' keyboard pattern, not for production use yet...

Signed-off-by: Alex A. Naanou <alex.nanou@gmail.com>

ui (gen4)/lib/keyboard.js

@@ -300,6 +300,8 @@ function dropRepeatingkeys(handler, max_rate){
  * XXX should action handler support event.stoppropagation()???
  * 		...at this point I'm not sure it is needed as it will not affect 
  * 		the keyboard handlers, it will preven further JS event handlers...
+ * XXX this also supports the experimental 'ALL' key name that matches 
+ * 		all the keys, needs more work, not for production use...
  */
 var getKeyHandlers =
 module.getKeyHandlers =
@@ -376,8 +378,11 @@ function getKeyHandlers(key, modifiers, keybindings, modes, shifted_keys, action
 			modifiers = modifiers.replace(/\+?shift/i, '') 
 		} else if(chr in bindings){
 			var handler = bindings[chr]
-		} else {
+		} else if(key in bindings) {
 			var handler = bindings[key]
+		// XXX experimental...
+		} else {
+			var handler = bindings['ALL']
 		}
 
 		// alias...

ui (gen4)/viewer.js

@@ -2309,6 +2309,11 @@ var drawer = require('lib/widget/drawer')
 // This will wrap the actions adding a contextual .preventClosing() method, 
 // if called it will prevent the list from closing on open event and give 
 // the user control over when to close the base list...
+//
+// XXX this may be a source for race conditions...
+// 		scenario:
+// 			- an action is run while a menu runs a state changing action
+//			- state restoration will overwrite the effects fo the BG action
 var makeActionLister = function(list, filter, pre_order){
 	pre_order = typeof(filter) == typeof(true) ? filter : pre_order
 	filter = typeof(filter) == typeof(true) ? null : filter