feat(autocomplete): allow select on match to be case insensitive.

Fixes #5782

Closes #6935

Author: devversion

src/components/autocomplete/js/autocompleteDirective.js

@@ -65,6 +65,8 @@ angular
  * @param {number=} md-input-maxlength The maximum length for the input's value for validation
  * @param {boolean=} md-select-on-match When set, autocomplete will automatically select exact
  *     the item if the search text is an exact match
+ * @param {boolean=} md-match-case-insensitive When set and using `md-select-on-match`, autocomplete
+ *     will select on case-insensitive match
  *
  * @usage
  * ### Basic Example
@@ -127,25 +129,26 @@ function MdAutocomplete () {
     controller:   'MdAutocompleteCtrl',
     controllerAs: '$mdAutocompleteCtrl',
     scope:        {
-      inputName:      '@mdInputName',
-      inputMinlength: '@mdInputMinlength',
-      inputMaxlength: '@mdInputMaxlength',
-      searchText:     '=?mdSearchText',
-      selectedItem:   '=?mdSelectedItem',
-      itemsExpr:      '@mdItems',
-      itemText:       '&mdItemText',
-      placeholder:    '@placeholder',
-      noCache:        '=?mdNoCache',
-      selectOnMatch:  '=?mdSelectOnMatch',
-      itemChange:     '&?mdSelectedItemChange',
-      textChange:     '&?mdSearchTextChange',
-      minLength:      '=?mdMinLength',
-      delay:          '=?mdDelay',
-      autofocus:      '=?mdAutofocus',
-      floatingLabel:  '@?mdFloatingLabel',
-      autoselect:     '=?mdAutoselect',
-      menuClass:      '@?mdMenuClass',
-      inputId:        '@?mdInputId'
+      inputName:        '@mdInputName',
+      inputMinlength:   '@mdInputMinlength',
+      inputMaxlength:   '@mdInputMaxlength',
+      searchText:       '=?mdSearchText',
+      selectedItem:     '=?mdSelectedItem',
+      itemsExpr:        '@mdItems',
+      itemText:         '&mdItemText',
+      placeholder:      '@placeholder',
+      noCache:          '=?mdNoCache',
+      selectOnMatch:    '=?mdSelectOnMatch',
+      matchInsensitive: '=?mdMatchCaseInsensitive',
+      itemChange:       '&?mdSelectedItemChange',
+      textChange:       '&?mdSearchTextChange',
+      minLength:        '=?mdMinLength',
+      delay:            '=?mdDelay',
+      autofocus:        '=?mdAutofocus',
+      floatingLabel:    '@?mdFloatingLabel',
+      autoselect:       '=?mdAutoselect',
+      menuClass:        '@?mdMenuClass',
+      inputId:          '@?mdInputId'
     },
     link: function(scope, element, attrs, controller) {
       // Retrieve the state of using a md-not-found template by using our attribute, which will