test: remove AngularJS 1.4 from test-versions.sh

"should assign bindings by $onInit for ES6 classes" fails on 1.4
add missing shebang

Relates to #10977

Author: Splaktar

scripts/test-versions.sh

@@ -1,3 +1,5 @@
+#!/bin/bash
+
 # The purpose of this file is to download
 # assigned AngularJS source files and test
 # them against this build of AngularJS Material.
@@ -21,7 +23,7 @@
 # [CONFIG VALUES]
 
 # Available Options are: 1.X, 1.X.X, 1.X.X-(beta|rc).X or snapshot
-VERSIONS=(1.4 1.5 1.6 snapshot)
+VERSIONS=(1.5 1.6 snapshot)
 BROWSERS="Chrome"
 
 #