v1.7.0

• Shell command history persisted across sessions, navigable with the arrow keys
• hosts table now shows the assigned rate/direction for limited/blocked hosts, instead of just "Limited"/"Blocked"
• Added scan --intensity [1,2,3] to trade scan speed for thoroughness (quick/normal/intense); also applies to watch's background reconnect scans
• Added auto_scan config option (opt-in) to run scan then hosts automatically at startup
• monitor now tracks bandwidth for every discovered host, not just limited/blocked ones
• limit now accepts up/down rates (e.g. 200kbit/1mbit) for independent upload/download limits in one call
• Added netem command to emulate packet delay/loss (tc-netem) on an already-limited host