1b85e35256
Remove the old global locking system. We lock only the accounts that we currently sync, so you can invoke OfflineImap multiple times now as long as you sync different accounts. This system is compatible with all releases >= 6.4.0, so don't run older releases simultanous to this one. This mostly reverts commit 0d9565141765b8b23c1c723d325cf494e47cc80d, disabling the old global lock system that we had in parallel to the new one. Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>