Add TEST option to toggle regression tests. They were previously running
by default and causing aarch64 builds to fail, presumably due to an emulation
issue. [1]

Add EMACS option to install emacs lisp files. Previously, if emacs was
already installed on the system, it would install these files in STAGEDIR
and would cause check-plist to error.

Convert USE_MYSQL to USES=mysql
Convert CPPFLAGS/LDFLAGS to USES=localbase
Add some missing dependencies reported by stage-qa
Remake patches
Bump PORTREVISION

Reported by: linimon (via private mail) [1]