[Fix Bug 962191] Migrate groups without a curator to accept new members
[Bug 938005] Fix timezone helper tests
Merge pull request #787 from Sancus/fixtmzutilstests

[Bug 938005] Fix timezone helper tests
Merge pull request #786 from Sancus/legacygroups

[Fix Bug 962191] Migrate groups without a curator to accept new members
[Bug 964236] fixed email links and displayed IRC name as “IRC: ____” just as it shows on the full profile