Automated checkin: version bump for fennec 26.0b6 release. DONTBUILD CLOSED TREE a=release

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branch : MOBILE260b6_2013111823_RELBRANCH
Added FENNEC_26_0b6_RELEASE FENNEC_26_0b6_BUILD1 tag(s) for changeset 68d8fc5fa0da. DONTBUILD CLOSED TREE a=release

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branch : MOBILE260b6_2013111823_RELBRANCH