Automated checkin: version bump for thunderbird 17.0.5esr release. DONTBUILD CLOSED TREE a=release

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branch : GECKO1705esr_2013032810_RELBRANCH
Added THUNDERBIRD_17_0_5esr_RELEASE THUNDERBIRD_17_0_5esr_BUILD1 tag(s) for changeset bac529d7dad6. DONTBUILD CLOSED TREE a=release

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branch : GECKO1705esr_2013032810_RELBRANCH