Automated checkin: version bump for firefox 23.0b3 release. DONTBUILD CLOSED TREE a=release

--HG--
branch : GECKO230b3_2013070320_RELBRANCH
Added FIREFOX_23_0b3_RELEASE FIREFOX_23_0b3_BUILD1 tag(s) for changeset 4be469df6d23. DONTBUILD CLOSED TREE a=release

--HG--
branch : GECKO230b3_2013070320_RELBRANCH