v0.6.29

Changelog

046e969 filter dupes when setting dnsdomains and searchdomains
4a4db86 error in withuserid
dc7be55 implement uninstall for linux and cleanup
e9bf171 fix user id 0 when using user flag
ca9ff1f refactor all file functions to use afero fs, prevent logout login on brev workspaces, reset vpn when logging out, clear default org when logout