Namespace Disqus config vars.
Clean up spurious trailing whitespace, and extra/missing newlines at EOF.
Make RSync deployments a bit safer by making deletion of defunct files happen after everything else is updated.

This prevents a race condition where someone may get an old version of a page, and have dependent assets not exist.
Merge pull request #1205 from MrJoy/safer_rsync

Make RSync deployments a bit safer by making deletion of defunct files h...
Merge pull request #1202 from MrJoy/whitespace_cleanup

Clean up spurious trailing whitespace, and extra/missing newlines at EOF...
Merge pull request #1199 from MrJoy/disqus_namespacing

Namespace Disqus config vars.
Merge branch '2.1' of git://github.com/imathis/octopress
Update source.