allow cobrands to restrict /contact to abuse reports

Add abuse_reports_only cobrand method that prevents the contact form
being used unless it's an abuse report.

1 files changed, 6 insertions, 1 deletions

diff --git a/docs/customising/cobrand-module.md b/docs/customising/cobrand-module.md
index fb771ab26..da9c9188f 100644
--- a/docs/customising/cobrand-module.md
+++ b/docs/customising/cobrand-module.md
@@ -101,5 +101,10 @@ name.
     <a href="{{ "/glossary/#state" | relative_url }}" class="glossary__link">state</a>
     of the report. Return 0 to disable this feature so that surveys are never
     sent.
-    
+
+* abuse_reports_only
+
+    Limit the contact page to only accepting abuse reports for comments
+    and updates. This can be useful if you have another contact form and
+    want to prevent people using this.