roverlay/core, default_helper_setup(): fix log_to_console

False == 0, so check whether log_to_console is False
(-> don't enforce console logging) or 0 (-> set log level to 0).
hook environment: set PORTDIR
metadata-cache hook: --repositories-configuration

Pass --repositories-configuration instead of --portdir-overlay to egencache.
roverlay-9999.ebuild: fix/update deps
roverlay/util/ebuildparser: fix typo

foreach_str(), not str_foreach()

Introduced by 326a51e15095d3062f0e6b4b39ea27b247324ea9.