fix(autocomplete): Hide the suggestion list after a tag is removed

Hide the autocomplete list after a tag is removed because keeping it
open is confusing to the user since it doesn't contain the tag which
was just deleted.

src/auto-complete.js

@@ -200,7 +200,7 @@ tagsInput.directive('autoComplete', function($document, $timeout, $sce, $q, tags
             };
 
             tagsInput
-                .on('tag-added invalid-tag input-blur', function() {
+                .on('tag-added tag-removed invalid-tag input-blur', function() {
                     suggestionList.reset();
                 })
                 .on('input-change', function(value) {

test/auto-complete.spec.js

@@ -272,7 +272,7 @@ describe('autoComplete directive', function() {
             expect(isSuggestionsBoxVisible()).toBe(false);
         });
 
-        it('doesn\'t hide the suggestion box when a tag is removed', function() {
+        it('hides the suggestion box when a tag is removed', function() {
             // Arrange
             suggestionList.show();
             $scope.$digest();
@@ -282,7 +282,7 @@ describe('autoComplete directive', function() {
             $scope.$digest();
 
             // Assert
-            expect(isSuggestionsBoxVisible()).toBe(true);
+            expect(isSuggestionsBoxVisible()).toBe(false);
         });
 
         it('hides the suggestion box after adding the selected suggestion to the input field', function() {