Automated checkin: version bump for fennec 22.0b6 release. DONTBUILD CLOSED TREE a=release

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branch : MOBILE220b6_2013061717_RELBRANCH
Added FENNEC_22_0b6_RELEASE FENNEC_22_0b6_BUILD1 tag(s) for changeset 44d3ce86a724. DONTBUILD CLOSED TREE a=release

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branch : MOBILE220b6_2013061717_RELBRANCH