Summary:
This changes moves most of the functionality found in flipper-server to flipper-server-core.
flipper-server will mostly be a package that wraps around flipper-server-core. Staying in flipper-server:
- Command line args
- Orchestration to start the necessary servers
Reviewed By: aigoncharov
Differential Revision: D36807087
fbshipit-source-id: f29002c7cc5d08b8c5184fdaaa02ba22562a9f45
