* define spawn area from settings
* autodetect limit of world and limit the radio spawn area to this
* if radious area is big limit to almost the border
* if radious area is small limit to almost 600
* disable if radio is too small or less than 3
* when player re joins, respawn agains so remove code for rejoin
* player must be in same position form last time if are alive
* improve commit 2b50e329f0 and 004e8dabe7 due we need beds checks
* depends.txtx abd make beds optional so we can chek the beds global var
* return true when finished the respawn find ground.. i dont know but works
* that return is need in the respawn callback function of the player
* added minetest.register_on_joinplayer callback to randomized new player
* renaming to plan to use two kind of spawn mods.. this is for randown
* rename random_spawn to spawnrand
* reduce time wait to .1 second if no ground valid
* reduce time to search from 30 times cicle to 20
