Loading bar
When a backup is running, any players with the permission easierbackup.showprogress and/or easierbackup.controlbackup will be shown a loading bar.

Permissions changed
This updates changes the permissions. The new permissions are:
easierbackup.showprogress - Shows you the loading bar
easierbackup.controlbackup - Gives you access to /backup start and /backup abort
easierbackup.reload - Gives you access to /backup reload

Bugfixes

• Fixed tab completion
• Fixed "IllegalStateException: Backup is already running" when using /backup start while a backup is already running
• Subcommands are now case-insensitive