feat: add option to restrict the default resolver to IPv4 or IPv6 (#21)

Add support for httptrace's DNSStart and DNSDone hooks (#18)

add option to persist failed lookups (#14)

documentation: Using net package functions to parse and join host/port + using DialContext to propagate context into dialing part (#9)

The ability to submit a custom DNS resolver as default DNS resolver (#8)

Fix race condition on delete (#7)

Fix cache clearing

Rename loadLoacked to load to reflect its new behavior

Fix data race. (#2)

update the function name Dial in README to DialContext (#3)

Fix bug in exemple

Remove Go 1.7 support

Fix README example

Initial commit