Bump version and changelog for 0.98 release; (C) 2018

Revert define of NPCAP_OEM, it did less than nothing.

Bump version and changelog for 0.96 release

Bump version and changelog for 0.95 release

Bump version and changelog for 0.94 release

Merge branch 'master' of https://github.com/nmap/npcap

Bump version and changelog for 0.92 release

Merge branch 'master' of https://github.com/nmap/npcap

Bump version and changelog for 0.90 release

Bump version and changelog for 0.86