Update SpamAssassin to 3.4.0, and take maintainership.
As part of this upgrade, the SPAMC option has been removed. First
and foremost, it was a NO-OP as spamc/spamd was being built anyway.
A number of other OPTIONS and dependencies have been cleaned up as
I am also taking maintainership of p5-Mail-SpamAssassin-Alt, and I
intend to deprecate it unless I hear otherwise.
The patch/plist for japanese/p5-M-SA is no longer versioned. It'll
make future updates cleaner.
The patch is a collaborative effort between myself and