Adds stargate.server and stargate.admin.bungee permissions to the readme
Renames stargate.reload to stargate.admin.reload for better consistency
Makes the stargate.admin permission only give the reload, hidden, private and bungee permissions while the wildcard permission gives all permissions
Adds some new tests
Improves plugin command handling by using one class for each command
Makes some changes to vehicle teleportation to support horses and pigs, but vehicle teleportation is still buggy and messy
Adds some more missing comments
Adds a wildcard permission and uses built-in permissions some places to avoid checking for three different permissions