fix sexp serialization/deserialization library calls
Target 4.00.1 on Linux/x86_64
fix URI sexpization
fix URI serialization again
Fix serialization/deserialization of worker messages
worker actions and task reporting
fix time-outs, task index, ocamlot index closure
use prefix for work tasks
work command job acceptance and loop
job monitoring
asynchronize opam processes
remove cwd state, make cwd param to run_command; when cloning repos, setup name and email configs to allow merges
catch package inference errors in GH scanning, run commands in proper working dirs
scan failure backtrace logging
factor and rudimentarily finish client worker protocol