Add company feature.

templates/register.html

@@ -13,9 +13,16 @@
     {% endwith %}
     
     <form method="POST" action="{{ url_for('register') }}" class="auth-form">
+        <div class="form-group">
+            <label for="company_code">Company Code</label>
+            <input type="text" id="company_code" name="company_code" class="form-control" required autofocus 
+                   placeholder="Enter your company code">
+            <small class="form-text text-muted">Get this code from your company administrator.</small>
+        </div>
+        
         <div class="form-group">
             <label for="username">Username</label>
-            <input type="text" id="username" name="username" class="form-control" required autofocus>
+            <input type="text" id="username" name="username" class="form-control" required>
         </div>
         
         <div class="form-group">