- we don't support go < 1.8. this restriction as added because plugin support
requires go 1.8 or up, but with such old versions being EOL, this check was
rather redundant
- add back arm64 support; in 6bd0710831, non-amd64
was disabled, pending golang/go#17138, which was tracking arm64 support, and
is now resolved. It's unclear if architectures other than amd64 and arm64 are
supported, so keeping it restricted to amd64 and arm64.
- enable plugin support on Windows; it was disabled in 0b44e24c07
but the code looks to take windows into account.
Signed-off-by: Sebastiaan van Stijn <github@gone.nl>
