* Change the log syncing behavior
* fix up abstractions for syncer
* Finished checkpoint syncing
* Code
* Set of changes to get things running
* Fixes for log syncing
* Fix parts
* Lint and other fixes
* fix some test
* Remove extra parsing functionality
* some test fixes
* Fix up cloud syncing
* Another thing to do
* Fix up tests and local sync
Changes LogSync into a mixin, and adds tests for different
functionalities.
* Fix up tests, start on local migration
* fix distributed migrations
* comments
* formatting
* Better checkpoint directory handling
* fix tests
* fix tests
* fix click
* comments
* formatting comments
* formatting and comments
* sync function deprecations
* syncfunction
* Add documentation for Syncing and Uploading
* nit
* BaseSyncer as base for Mixin in edge case
* more docs
* clean up assertions
* validate
* nit
* Update test_cluster.py
* betterdoc
* Update tune-usage.rst
* cleanup
* nit