* Improving mattermost auth implementation
* Making mattermost-auth based on shared database access
* Reverting unneeded changes in the config.json file
* Fixing tiny problems
* Removing the need of using the mattermost session token
* Fixing some bugs and allowing to not-bind the server to any port
* Small fix to correctly get the templates
* Adding the mattermost-plugin code inside focalboard repo
* Adding a not working code part of the cluster websocket communication
* Updating the mattermost version
* Adding the cluster messages for the websockets
* Updating to the new node version
* Making it compatible with S3
* Addressing some tiny problems
* Fixing server tests
* Adds support for MySQL migrations and initialization
Co-authored-by: Miguel de la Cruz <miguel@mcrx.me>
* Adding mysql support
* Fixing other test cases
* Tests passing on mysql
* Fix the row number generation
* Adding blocks_history table
* merging the migrations in one single set of files
* Passing mysql tests
* Fixing default encoding on mysql
* Simplifying things
* Removing from the blocks table all deleted blocks
* Better indentation
* Moving db types to constants to make it less error prone
* reducing duplicated code
* Removing log line
* Now sql tests are running properly in mysql, sqlite and postgres
