Fix issue 26 (#27)

* Fixed icons in the search bar mis-aligned vertically
* Fixed search text INVISIBLE in the search bar on IE
* Removed additional small 'x' on the right side of the search bar on IE and Edge

paper-search-bar.html

@@ -25,14 +25,14 @@
 				padding: 0 16px;
 				@apply --layout-horizontal;
 				@apply --layout-center-center;
-				min-height: 48px;
-				max-height: 48px;
+				height: var(--paper-search-bar-height, 48px); /* To resolve `min-height` bug on IE 11 */
 				box-sizing: border-box;
 			}
 
 			iron-input {
 				@apply --layout-flex;
 				@apply --layout-vertical;
+				height: 100%; /* To resolve `min-height` bug on IE 11 */
 			}
 
 			.icon {
@@ -51,6 +51,9 @@
 				border: 0;
 				outline: 0;
 			}
+			#input::-ms-clear {
+				display: none;
+			}
 
 			#input[disabled] {
 				@apply --disabled-input-styles;