updated lib with new planner-related functions
resolves #58

- increase logging verbosity for tests
- use npmlog
- remove string, string-format, sync modules
- refactor planner
0.9.74
removed string-format require from xt.install
cat xtuple-server.log after failure in ci
Merge pull request #315 from tjwebb/planner-error-verbosity

Planner error verbosity