chore(protractor): run travis-ci e2e tests on IE10

...can we?

Author: caitp

protractor-travis-conf.js

@@ -25,6 +25,12 @@ config.multiCapabilities = [{
   'name': 'Angular E2E',
   'tunnel-identifier': process.env.TRAVIS_JOB_NUMBER,
   'build': process.env.TRAVIS_BUILD_NUMBER
+}, {
+  browserName: 'internet explorer',
+  platform: 'Windows 7',
+  version: '10',
+  'tunnel-identifier': process.env.TRAVIS_JOB_NUMBER,
+  build: process.env.TRAVIS_BUILD_NUMBER
 }];
 
 config.allScriptsTimeout = 30000;