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

Upgrade Jedi to 0.12.0 (palantir#340)

Default syntax error offset to zero pyflakes (palantir#332)

* Default to zero

* Default to zero

Remove parameters from async handler (palantir#320)

Prefer autopep8 (palantir#315)

handle cancel correctly (palantir#289)

* handle cancel correctly

* move paren

fix request-id (palantir#268)

Add support for asynchronously handling requests (palantir#261)

Fixes TypeError: '>=' not supported between instances of (palantir#252)

Remove pluggy racing (palantir#222)

* Completion: Remove pluggy racing and disable Rope by default

This allows the user to choose between Rope and Jedi for completions.

It also remove the pluggy racing since Jedi's cache isn't thread safe.

Closes palantir#189

* Only use single completion hook

* Remove pluggy and disable rope completions by default

* Remove pluggy