Added required to login.html inputs

Without adding the required attribute to those inputs, the client-side validation in the help-block below the form (ng-show="form.email.$error.required && form.password.$error.required && submitted") will never actually catch and show the error without a request being sent to the server.

Author: ramdog

templates/views/html/partials/login.html

@@ -11,13 +11,13 @@ <h1>Login</h1>
       <div class="form-group">
         <label>Email</label>
 
-        <input type="text" name="email" class="form-control" ng-model="user.email">
+        <input type="text" name="email" class="form-control" ng-model="user.email" required>
       </div>
 
       <div class="form-group">
         <label>Password</label>
 
-        <input type="password" name="password" class="form-control" ng-model="user.password">
+        <input type="password" name="password" class="form-control" ng-model="user.password" required>
       </div>
 
       <div class="form-group has-error">
@@ -37,4 +37,4 @@ <h1>Login</h1>
     <hr>
     Not registered? <a href="/signup" class="text-center new-account">Create an account.</a>
   </div>
-</div>
+</div>