Lint JS files w/out extension too (#453)

Prior to this change, JS files without extension had not been linted.

To match them, we need a combination of positive and negative globbing
that does not mix well with the existing file selection for linting. Thus, we use
npm-run-all to run two ESLint invocations unconditionally in sequence
while still preserving the error code.

* Lint JS w/out extension too
* Fix newly surfaced linting errors
* Make use of npm-run-all for test script too

bin/check_reqs

@@ -22,9 +22,10 @@
 var check_reqs = require('./templates/cordova/lib/check_reqs');
 
 check_reqs.run().done(
-    function success() {
+    function success () {
         console.log('Looks like your environment fully supports cordova-android development!');
-    }, function fail(err) {
+    },
+    function fail (err) {
         console.log(err);
         process.exit(2);
     }