Firefox 40.0b7

• Update verify tests failed due to fallout from balrog failover bug 1187295

Firefox 40.0b8

• One hg clone failure during Windows repack
• One update verify failure, seemingly intermittent.

Thunderbird 40.0b1

• Release runner failed due to bad l10n changesets being submitted
• Builds failed due to in-tree mozharness issue bug 1186679
• Windows build failed due to bad changeset being submitted
• "uk" locale repacks failed due to bad l10n changeset
• Two Windows repack failures due to failures to clone from hg