Bug 752836 - Don't do Thunderbird builds on comm-* branches for non-Thunderbird pushes - enable per-product builds for Thunderbird. r=bhearsum

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branch : production
Update release config for Thunderbird-30.0b1-build1

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branch : production
Added tag THUNDERBIRD_30_0b1_RELEASE, THUNDERBIRD_30_0b1_BUILD1 for changeset edfe42d5d262

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branch : production