FIX: select-kit refactoring

- improve mini-tag-chooser keyboard behavior
- all multil select now respond to select all and left/right arrows
- improve events handling
- many minor tweaks

test/javascripts/components/category-selector-test.js.es6

@@ -72,6 +72,7 @@ componentTest('interactions', {
       assert.equal(this.get('categories').length, 3);
     });
 
+    this.get('subject').expand();
     this.get('subject').keyboard().backspace();
     this.get('subject').keyboard().backspace();
 

test/javascripts/components/list-setting-test.js.es6

@@ -63,7 +63,7 @@ componentTest('interactions', {
       assert.equal(listSetting.header().value(), 'bold,italic,underline');
     });
 
-    listSetting.fillInFilter('strike');
+    listSetting.expand().fillInFilter('strike');
 
     andThen(() => {
       assert.equal(listSetting.highlightedRow().value(), 'strike');

test/javascripts/components/multi-select-test.js.es6

@@ -66,6 +66,7 @@ componentTest('interactions', {
     });
 
     this.get('subject').selectRowByValue(3);
+    this.get('subject').expand();
 
     andThen(() => {
       assert.equal(