Binary substitutes for MIPS now available

[Mark H Weaver]

Hello all,

I'm pleased to announce that our build farm now includes a Loongson 3A
machine, a reasonably fast quad-core MIPS-compatible machine on
indefinite loan from Daniel J Clark (thanks, Danny! :).

It has just finished building binary substitutes for all packages on the
master branch of guix git.  Therefore, Guix 0.7 will offer full support
for binary substitutes on MIPS.

      Mark