add missing "nop.js". killall.js: rename to kill.js. add `--script` and `--server` options.

Created by  jesse <nicoty@tuta.io>  on April 27, 2020
DJDWBCCQHQRKHGRKKQ32QY3WDEM7EKDDQ2YQLSSCS7HZTLHDRCFQC
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