fixed redirection in login page, thanks Osman Masood

applications/welcome/views/default/user.html

@@ -4,7 +4,7 @@
 {{
 if request.args(0)=='login':
     if not 'register' in auth.settings.actions_disabled:
-        form.add_button(T('Register'),URL(args='register'),_class='btn')
+        form.add_button(T('Register'),URL(args='register', vars={'_next': request.vars._next} if request.vars._next else None),_class='btn')
     pass
     if not 'request_reset_password' in auth.settings.actions_disabled:
         form.add_button(T('Lost Password'),URL(args='request_reset_password'),_class='btn')