chore(tests): update Protractor to 1.6.x and use Jasmine2 as framework

There are no changes necessary in the current test code for the update to
Jasmine2 framework.

protractor-shared.js

@@ -18,6 +18,8 @@ var config = exports.config = {
     }
   },
 
+  framework: 'jasmine2',
+
   jasmineNodeOpts: {
     showColors: true,
     defaultTimeoutInterval: 30000
@@ -66,4 +68,4 @@ if (cmdLineBrowsers.length) {
   });
 } else {
   config.multiCapabilities = [POSSIBLE_CAPS.ChromeDesktop];
-}
+}