Include tests in source dist (palantir#478)

yapf_format: fix config lookup (palantir#473)

Rename jsonrpc package (palantir#470)

Fix goto_assignments config (palantir#457)

Make checking parent process aliveness behind a flag (palantir#455)

Closes palantir#445

Fix parent process watcher thread (palantir#416)

* Fix parent process watcher thread

* timer

Increase max workers to 64 (palantir#415)

Make python language server exit when parent process dies (palantir#410)

Add license to source distribution (palantir#396)

skip invalid definition to fix palantir#362 (palantir#364)