Chimo 937adf05c9 Remove NOT NULL restriction on HubSub 'lease'
This fixes an issue where INSERTs in HubSub fail if MySQL/MariaDB is
running in "strict mode" since the default lease time in
PushHubAction::subunsub is null.

Permanent subscriptions have been removed in PuSH v0.4, but they are
being kept here for backward-compatibility with previous GS/SN versions.
2015-02-07 10:46:13 -05:00
..
2015-01-24 12:18:55 +01:00