Automated checkin: version bump for fennec 25.0b6 release. DONTBUILD CLOSED TREE a=release

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branch : MOBILE250b6_2013100800_RELBRANCH
Added FENNEC_25_0b6_RELEASE FENNEC_25_0b6_BUILD1 tag(s) for changeset 2a51a3bb0304. DONTBUILD CLOSED TREE a=release

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branch : MOBILE250b6_2013100800_RELBRANCH