Improve handling of lipstick ipc failures

Use longer than default timeout for UpdatesEnabled dbus ipc with lipstick.
If UpdatesEnabled ipc still fails, retry until it either succeeds, or
lipstick drops from the system bus.

If display transition has been started, it needs to be finished even
though we would land in the previously active state.

Transition from real off to logical off needs to go through frame buffer
resume step.

[mce] Improve handling of lipstick ipc failures
Merge pull request #111 from spiiroin/lipstick_ipc

Improve handling of lipstick ipc failures