include/xpi.h: Add _F_xpi_installpath. Do not extract the xpi on install.
include/mozilla-i18n.sh: Add _F_mozilla_i18n_xulname to help to determine _F_xpi_installpath.
include/util.sh: Remove xpi from Fextract.
firefox-i18n-22.0-1-x86_64

* Bump version.