Automated checkin: version bump for firefox 25.0b3 release. DONTBUILD CLOSED TREE a=release

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branch : GECKO250b3_2013092619_RELBRANCH
Added FIREFOX_25_0b3_RELEASE FIREFOX_25_0b3_BUILD1 tag(s) for changeset 5939fc06a3cd. DONTBUILD CLOSED TREE a=release

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branch : GECKO250b3_2013092619_RELBRANCH