Priority hostels

This release is the version used for the 2021 room-ballot.
The only significant change is priority now affects the probability of being put into an outer hostel.

Hard Priority

This release implements the MCR feedback that priorities should be "hard":

• Priority (only) determines who will be entering the ballot.
• Once in the ballot priority no longer affects the probability of being kicked.

Additionally, better results visualization and collusion detection have been implemented.

A 64-bit Linux binary is attached to this release, its sha256 checksum is:
ea23cc5e791f4e2d8db408efeafb85b501b8b0ce94a240da206c989e8676e809

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