Committee release

This is the first release of the MCR room ballot code.
This is probably not the version that will be used for the room ballot this year.
This version is intended for scrutiny by the committee.

A 64-bit Linux binary is attached to this release, its sha256 checksum is:
19ee215aca380fd56422f1c321e612ba8ca3add79a4df3ec00fe5f0ba06df7ca