Revert "Lock file maintenance"
Revert "Lock file maintenance"

This reverts commit 9a1037b850ad06c5661fd0bf5c66bd3cd2db65d8.

- a sub-dependency was causing "Uncaught exception undefined" errors when post publish times were changed
- reverting until there is time to track down exactly which dependency was causing the problem

TryGhost/Ghost,TryGhost/Ghost,TryGhost/Ghost