Update Javelin and packaging
Summary:
- Update the Javelin submodule to pick up recent fixes (like D1749).
- Update the package definitions do do a slightly better job of packaging
resources.
Test Plan:
Up and down work in tokenizers now. Pages load slightly fewer
resources.
Reviewers: vrana, btrahan
Reviewed By: btrahan
CC: aran, epriestley
Maniphest Tasks: T927
Differential Revision: https://secure.phabricator.com/D1751