v2.2.0 — toxiproxy — releases.sh

Update linux packages to use /usr/bin folder as binary destination and change the executable names to exclude ARCH and OS names. New pathes:
```
/usr/bin/toxiproxy-cli
/usr/bin/toxiproxy-server
```
(#331, @miry)
A new toxic to simulate TCP RESET (Connection reset by peer) on the connections by closing the stub Input immediately or after a timeout. (#247 and #333, @chaosbox)