Remove lighthouse in favor if github issues.

Author: metaskills

README.rdoc

@@ -150,10 +150,9 @@ Here are some external links for libraries and/or tutorials on how to install an
 
 == Contributing
 
-If you’d like to contribute a feature or bugfix, thanks! To make sure your fix/feature has a high chance of being added, please read the following guidelines. First, ask on the Google list, IRC, or post a ticket in Lighthouse. Second, make sure there are tests! We will not accept any patch that is not tested. Please read the RUNNING_UNIT_TESTS file for the details of how to run the unit tests.
+If you’d like to contribute a feature or bugfix, thanks! To make sure your fix/feature has a high chance of being added, please read the following guidelines. First, ask on the Google list, IRC, or post a ticket on github issues. Second, make sure there are tests! We will not accept any patch that is not tested. Please read the RUNNING_UNIT_TESTS file for the details of how to run the unit tests.
 
 * Github: http://github.com/rails-sqlserver
-* Lighthouse: http://rails-sqlserver.lighthouseapp.com/projects/20277-sql-server-05-adapter/tickets
 * Google Group: http://groups.google.com/group/rails-sqlserver-adapter
 * IRC Room: #rails-sqlserver on irc.freenode.net