v0.18.0

Changelog

• 034b8aa docs(README): add notes for max-errors & max-retries
• 0724d5f feat(server): infinite max. errors if lt 0
• 9c37b4d docs: add remove-on-error option
• 7f946f3 feat: add remove-on-error option
• fd8db54 refactor(proxymanager): handle Proxies index
• 7faca4e feat: add errors pkg
• 711da74 feat(server): add proxy count log
• 8a90f36 feat(proxymanager): add Count method
• e51a07a feat(proxymanager): add RemoveProxy method