Automated checkin: version bump for firefox 25.0b4 release. DONTBUILD CLOSED TREE a=release

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branch : GECKO250b4_2013100105_RELBRANCH
Added FIREFOX_25_0b4_RELEASE FIREFOX_25_0b4_BUILD1 tag(s) for changeset dd1489d534ab. DONTBUILD CLOSED TREE a=release

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branch : GECKO250b4_2013100105_RELBRANCH