Automated checkin: version bump for firefox 26.0b1 release. DONTBUILD CLOSED TREE a=release

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branch : GECKO260b1_2013102901_RELBRANCH
Added FIREFOX_26_0b1_RELEASE FIREFOX_26_0b1_BUILD1 tag(s) for changeset f804b96367ef. DONTBUILD CLOSED TREE a=release

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branch : GECKO260b1_2013102901_RELBRANCH