fix(select): fix IE 11 select not growing

Author: rschmukler

src/components/select/select.scss

@@ -103,7 +103,7 @@ md-select {
   flex-grow: 1;
 
   *:first-child {
-    flex: 1;
+    flex: 1 0 auto;
     text-overflow: ellipsis;
     white-space: nowrap;
     overflow: hidden;