Add swift support.

Based on github.sh/cloudbuilders/deploy.sh/swift. This is a WIP branch.
diff --git a/files/apts/swift b/files/apts/swift
new file mode 100644
index 0000000..0776707
--- /dev/null
+++ b/files/apts/swift
@@ -0,0 +1,19 @@
+curl 
+gcc 
+memcached
+memcached 
+python-configobj 
+python-coverage
+python-dev
+python-eventlet 
+python-greenlet 
+python-netifaces
+python-nose
+python-nose 
+python-pastedeploy 
+python-setuptools 
+python-simplejson 
+python-webob 
+python-xattr
+sqlite3 
+xfsprogs