Added creator's signature to address book entry. Re-factory somethings and improve the merge of them
Delete entry with a wrong signature
Show only entry I want. Hidden anywhere.
Fixes typos: Matias's suggestions. Added more tests
Fixes typos and re-factory throw errors
Fixes: verify addressbook method
updated
Fix tests
Fixes and re-factory
.
Merge pull request #820 from cmgustavo/feature/02-addressbook

Creator's signature for addressbook entry