* a few bugfixes to MIME parsing for header and word decoding (Thanks Evan!) * added combined SubstringSplit function for more space efficient parsing * explicitly parse e-mail addresses for more flexible address separators * NonNull
now throws an exception if encapsulated value is null, which is used in the case when the instance is invalidly constructed (Thanks Mauricio!) * build now checks for the presence of the signing key and ignores it if it's not present * a more efficient Enum.HasFlag using codegen * added a new ImmutableAttribute which Sasa's runtime analyses respects * FilePath's encapsulated string now exposed as a property
Thanks to Evan/iaiken for a number of bug reports, and to Mauricio for feedback on the NonNull<T> pattern.