* add S3 region to system console and add S3 validation
* update translation message
* add bool as return value to Validate* functions
* update Validate* functions to be pure
* Implementation to Make all Mattermost system emails Multi-Part, with both a HTML and Plain Text version
* update lib
* update code per review
* update to use the mattermost repo
This commit redesigns the jobserver to be based around an architecture
of "workers", which carry out jobs of a particular type, and "jobs"
which are a unit of work carried by a particular worker. It also
introduces "schedulers" which are responsible for scheduling jobs of a
particular type automatically (jobs can also be scheduled manually when
apropriate).
Workers may be run many times, either in instances of the platform
binary, or the standalone jobserver binary. In any mattermost cluster,
only one instance of platform OR jobserver must run the schedulers. At
the moment this is controlled by a config variable, but in future will
be controlled through the cluster leader election process.
* Fixing config file watch and config reload on license save
* Fixing config file watch and config reload on license save
* Fixing build error
* Fixing locking issue
