tolk:import did not work correctly because my tolk tables in mysql were in latin1, not in utf-8
after changing my tables and columns to utf-8 I was able to import he and cs locale correctly
and regenerate
Minor fixes as a follow-up to #1340
* Assembla is HTTPS-only
* Mailing list is members-only, so link to the group instead and call it
"mailing list" instead of "email"
* getontracks.org's canonical URL has no www
* Make the same changes to the mobile footer
* The forum is no longer referenced, so purge from translations
