* Add configurable globalstep interval
* Add warning for high globalstep interval
* Lower maximum globalstep interval
With no accelerator tubes, 0.8 can handle item movement speeds even
with lag.
* Save the fakeplayer's wielded item in set_wielded_item
* pipeworks.luaentity: Return the found objects in get_objects_inside_radius
* Remove the invalid and unused on_blast return values in lua_tube.lua
This should avoid a crash when a strong explosion happens next to a Lua Tube.
* Do not access a global "nodename" in a BUG message.
This avoids a potential crash, in case the message actually appears in practice.
* Set the Flow Sensor and Fountain Head mesecons connection rules
* pipeworks.luaentity: Use the same function for move_to and set_pos
* (no functional change) Do not save the object returned by tube_inject_item into the "item1" local variable in filter-injector.lua
Try to prevent the crash from issue #33 by
replaving nil velocity or acceleration with (0,0,0).
This does not fix the underlying cause of them being nil,
but should prevent the crash.
now it'll run at full speed if there's enough time
else it'll throttle back to 1/3.
(at that point, the movement imprecision caused by this
will become hidden behind lag-induced imprecision)
