Automated checkin: version bump for firefox 17.0.2esr release. DONTBUILD CLOSED TREE a=release

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branch : GECKO1702_2013010419_RELBRANCH
Added FIREFOX_17_0_2esr_RELEASE FIREFOX_17_0_2esr_BUILD2 tag(s) for changeset 023401f37090. DONTBUILD CLOSED TREE a=release

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branch : GECKO1702_2013010419_RELBRANCH