# This is a combination of 2 commits.
# The first commit's message is:

* limit atmos/fire alerts to the current z_level
* atmos/fire alerts are now linked to an object and not its area, as intended
* simplified and full pathed the radio frequency datum
* made radio objects properly clean on del/qdel, instead of letting the radio controller remove nulls at each post_signal()

# This is the 2nd commit message:

Commit 2