v0.8.6

Changelog

c036bda Merge branch 'InfoSecChecker'
9ce2eb9 experiment with InfoSecChecker interface
f7adb1a minor changes in Makefile, checkip.go, shodan.go
2133ef1 minor changes in README.md
470752e minor changes in README.md, checkip.png
eb2f795 minor changes in checkip.go
8408e45 minor changes in checkip.png
97e44da remove emerging threats (ET) checker - they have too few IP addresses
48c9eac remove rfc1918 and mask InfoChecker
884238f remove rfc1918 and mask InfoChecker
da5574d unify Info output