Improve HPK compliance + now handle keys revocation

app/lib/jpgp.js

app/lib/sync.js

app/models/publickey.js

app/service/ParametersService.js

doc/HTTP_API.md

test/c-pubkeys.js

test/data/cgeek.pub.asc

test/data/lolcat.pub.asc

test/data/snow.pub.asc

test/data/uchiha.pub.asc

test/data/white.pub.asc

test/members-voters.js

test/tool/test.js

test/transfer.js