Please bump dev-lang/erlang to 16.3.1 (R16B03-1). Thanks to the new get_version_components code included since the last ebuild, simply renaming the ebuild works fine now. Apart from that, the only neccessary change is renaming "${PV}-tinfo.patch" to "16.2-tinfo.patch", as the said patch still applies cleanly. There haven't been much changes, so I've only done basic testing. CouchDB seems to work fine.
Committed, thanks!