Only show used, percent and remaining in Artron Indicator when travelling
Add ‘Flag’ support to TARDIS WorldGuard compatibility

The config will be updated automatically, and there are now 2 main
values for `respect_worldguard`

`none` - no WorldGuard region checking will take place at all, players
can land in anywhere
`flag` - this can be any WorldGuard State flag - most probably `build`
or `entry` - the default is `build` - valid values here:
http://wiki.sk89q.com/wiki/WorldGuard/Regions/Flags#Flag_List