Optimization
Add "mkelection" subcommand, that creates election.json from a template
Add an election template
Documentation for "mkelection"
Remove OCaml-based election template
Distinguish generated key and credential files by extension
Add optional sk argument to create_ballot
Add "vote" subcommand

The credential is taken from the file given to --privkey (if any).
Documentation for "vote"
Add a bash script to simulate a whole election
Remove OCaml-based election demo