Set required environment variables for e2e testing.

Added an 'id' to the login button so it can be automatically triggered.
Also, added an onPrepare section to protractor.conf to do the login.

webclient/login/login.html

@@ -23,7 +23,7 @@
                     <br/>
                     <input id="password" size="32" type="password" ng-model="account.password" placeholder="Password"/>
                     <br/><br/>
-                    <button ng-click="login()" ng-disabled="!account.user_id || !account.password || !account.homeserver">Login</button>
+                    <button id="login" ng-click="login()" ng-disabled="!account.user_id || !account.password || !account.homeserver">Login</button>
                     <br/><br/>
                 </div>
 

webclient/test/README

@@ -16,8 +16,12 @@ on. If you do, edit the config to point to that url):
   webdriver-manager start
 
   Create a file "environment-protractor.js" in this directory and type:
-    var seleniumAddress = 'http://localhost:4444/wd/hub';
-
+    module.exports = {
+        seleniumAddress: 'http://localhost:4444/wd/hub',
+        loginUrl: "http://localhost:8008/_matrix/client/#/login",
+        username: "YOUR_TEST_USERNAME",
+        password: "YOUR_TEST_PASSWORD"
+    }
 
 Running e2e tests:
   protractor protractor.conf.js

webclient/test/protractor.conf.js

@@ -1,6 +1,11 @@
 var env = require("./environment-protractor.js");
-
 exports.config = {
     seleniumAddress: env.seleniumAddress,
-  specs: ['e2e/*.spec.js']
+    specs: ['e2e/*.spec.js'],
+    onPrepare: function() {
+        browser.driver.get(env.loginUrl);
+        browser.driver.findElement(by.id("user_id")).sendKeys(env.username);
+        browser.driver.findElement(by.id("password")).sendKeys(env.password);
+        browser.driver.findElement(by.id("login")).click();
+    }
 }