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

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branch : GECKO220_2013061915_RELBRANCH
Added FIREFOX_22_0_RELEASE FIREFOX_22_0_BUILD2 tag(s) for changeset 0d4b9c74be55. DONTBUILD CLOSED TREE a=release

--HG--
branch : GECKO220_2013061915_RELBRANCH