android-sdk 23

Closes #30471.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
Deprecate Keg#fname
Remove dead code
Reuse existing keg object
slurm 0.4.0 (new formula)

Add a formula for slurm, an ncurses network load/traffic monitor.
https://github.com/mattthias/slurm
slurm: add 0.4.0 bottle.