v0.7.3

Changelog:

960101d Add custom routing for DNS server connections
0f48d32 Fix routing for Portmaster connections
879a174 Disable shutdown event with flag
1a222ca Improve and fix dns requests saving
4c9abba Always trigger event on shutdown
b7c8dee Add clean-structure cmd to setup and clean dir structure
be0a94b Reduce open dns requests by better handling dual stack requests