Automated checkin: version bump for firefox 19.0b4 release. DONTBUILD CLOSED TREE a=release

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branch : GECKO190_2013013010_RELBRANCH
Added FIREFOX_19_0b4_RELEASE FIREFOX_19_0b4_BUILD1 tag(s) for changeset e815122c4b1f. DONTBUILD CLOSED TREE a=release

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branch : GECKO190_2013013010_RELBRANCH