Change SWIFT_DRIVE_LOCATION to SWIFT_LOCATION

Fix some retarness along the way.
diff --git a/files/swift-proxy-server.conf b/files/swift-proxy-server.conf
index 99fc286..9e2b1dd 100644
--- a/files/swift-proxy-server.conf
+++ b/files/swift-proxy-server.conf
@@ -16,7 +16,7 @@
 user_test_tester = testing .admin
 user_test2_tester2 = testing2 .admin
 user_test_tester3 = testing3
-bind_ip = ${MY_IP}
+bind_ip = 0.0.0.0
 
 [filter:healthcheck]
 use = egg:swift#healthcheck