login button color

admin/views/login.html

 
                 <br />
                 <div class="col-sm-12 center-block">
-                    <button type="submit" class="btn btn-default center-block">Login</button>
+                    <button type="submit" class="btn btn-primary center-block">Login</button>
                 </div>
 
                 <br />

camotion/views/login.html

 
                 <br />
                 <div class="col-sm-12 center-block">
-                    <button type="submit" class="btn btn-default center-block">Login</button>
+                    <button type="submit" class="btn btn-primary center-block">Login</button>
                 </div>
 
                 <br />