[Feature] Safer teleporting

[WoodenAxe]

The current implementation will allow a residence tp point to be set in the sky, or above lava, or other unsafe locations. This may be desirable for some people, but for me it was preferred to always look for a safe location to put the player when they use /res tp

See my fork for a possible implementation of safe teleports: WoodenAxe@d656493

[drtshock]

There should be a configuration option for this. If we were going to do this, why not use the Essential's safe location? https://github.com/essentials/Essentials/blob/2.x/Essentials/src/com/earth2me/essentials/utils/LocationUtil.java#L281

[Pkuutn]

Is there "canTeleport" setting any more or could I just not find it?

[t00thpick1]

Permision node now @Pkuutn

[clucky]

I personally will most likely not be using the /res tp command, however, I do see a good reason as to why safe-teleportation should be integrated into the command's functionality.