IE8 support

[sergproua]

Would be nice to have IE8 support while AngularJS 1.X is supported. I was able to get it to work on IE8 with AngulaJS 1.x by replacing the following, please advise if I should submit a pull request

1. delete - reserved word

   var expectedRecordTypes = {
   add: true,
   update: true,
   'delete': true // wrapped
   };

2. catch - reserved word

.catch(...) in promise calls should be replaced with 'catch'

1. class - reserved word

.class should be replaced with ['class']

1. Object.create() does not exist but seems to work with https://github.com/es-shims/es5-shim. As an example of possible replacement
   IllegalArgumentError.prototype = Object.create(Error.prototype);
   Can be replaced with:
   IllegalArgumentError.prototype = new Error();