Fix multiple events subscription

Author: tadatuta

common.blocks/i-bem-dom/__events/_type/i-bem-dom__events_type_bem.js

@@ -37,9 +37,9 @@ var EVENT_PREFIX = '__bem__',
         var event = EVENT_PREFIX + params.bindEntityCls.getEntityName() +
             (typeof e === 'object'?
                 e instanceof events.Event?
-                    ' ' + e.type :
+                    ':' + e.type :
                     bemInternal.buildModPostfix(e.modName, e.modVal) :
-                ' ' + e);
+                ':' + e);
 
         eventMethod === 'on' && // TODO: count usage and remove on 'un'
             !eventsInUse[event] &&

common.blocks/i-bem-dom/__events/_type/i-bem-dom__events_type_dom.spec.js

@@ -44,7 +44,7 @@ describe('DOM events', function() {
                         'js' : {
                             'inited' : function() {
                                 this._domEvents()
-                                    .on('click', spy1)
+                                    .on('click keypress', spy1)
                                     .on('click', spy2)
                                     .on('click', data, wrapSpy(spy3))
                                     .once('click', spy4);

common.blocks/i-bem-dom/__events/i-bem-dom__events.js

@@ -52,6 +52,14 @@ var undef,
          * @returns {EventManager} this
          */
         on : function(e, data, fn, _fnCtx, _isOnce) {
+            if(typeof e === 'string' && e.indexOf(' ') > -1) {
+                e.split(' ').forEach(function(event) {
+                    this.on(event, data, fn, _fnCtx, _isOnce);
+                }, this);
+
+                return this;
+            }
+
             var params = this._params,
                 event = this._eventBuilder(e, params, 'on');
 
@@ -114,6 +122,14 @@ var undef,
         un : function(e, fn, _fnCtx) {
             var argsLen = arguments.length;
             if(argsLen) {
+                if(typeof e === 'string' && e.indexOf(' ') > -1) {
+                    e.split(' ').forEach(function(event) {
+                        this.un(event, fn, _fnCtx);
+                    }, this);
+
+                    return this;
+                }
+
                 var params = this._params,
                     event = this._eventBuilder(e, params, 'un');