Automated checkin: version bump for firefox 24.0 release. DONTBUILD CLOSED TREE a=release

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branch : GECKO240_2013091018_RELBRANCH
Added FIREFOX_24_0_RELEASE FIREFOX_24_0_BUILD1 tag(s) for changeset 7c3b0732e765. DONTBUILD CLOSED TREE a=release

--HG--
branch : GECKO240_2013091018_RELBRANCH