Updated Travis to Slackwebhook token (and tweaked README formatting to use snippet given by Travis)

.travis.yml

@@ -27,7 +27,7 @@ notifications:
     on_failure: always
   webhooks:
     urls:
-      - https://torchbox.slack.com/services/hooks/travis?token=Qs4aYF1Y5wJZAF797PKHShBI
+      - https://torchbox.slack.com/services/hooks/travis?token=oipXYppdokKobS8KXIRcOBIl
     on_success: change
     on_failure: always
 

README.rst

@@ -1,7 +1,4 @@
-|BuildStatus|_
-
-.. |BuildStatus| image:: https://travis-ci.org/torchbox/wagtail.png?branch=master
-.. _BuildStatus: https://travis-ci.org/torchbox/wagtail
+.. image:: https://travis-ci.org/torchbox/wagtail.png?branch=master   :target: https://travis-ci.org/torchbox/wagtail
 
 Wagtail CMS
 ===========