master
for some time now mandoc has not required MLINKS to function correctly - logically complete that now by removing MLINKS from base;
remove outdated contact details for ActivCard and CRYPTOCard
Use the safe idiom of cleaning sensitive data from memory with explicit_bzero, instead of relying on other methods, after readpassphrase. Some programs on this diff won't benefit that much since it happens near the terminal path, but someone might copy the unsafe idiom to another program and place it where it may leak sensitive data.