Remote Cluster Service
- provides ability for multiple Mattermost cluster instances to create a trusted connection with each other and exchange messages
- trusted connections are managed via slash commands (for now)
- facilitates features requiring inter-cluster communication, such as Shared Channels
Shared Channels Service
- provides ability to shared channels between one or more Mattermost cluster instances (using trusted connection)
- sharing/unsharing of channels is managed via slash commands (for now)
* Add make command for running the app in an HA topology
* Tidy up conf files, remove unnecessary commands and add restart-haserver command
* Use the right flag for checking enterprise folder presence before ha setup
