Adding user delete option, list events and message attributes

• Updating release versions due to number of new features ebing added
• Add support for deletion by user_id or email (#175)
• Add support for listing events (#173)
• Add support for updating avatars for Users and Contacts/Leads (#174)
• Add support for more message attributes: url, id and attachments (#177)

Removing restrictions on listing conversations

Release related to #171
Remove unnecessary type validation

Adding ID option for create events

This is option to create events with ID in #151

2.2.6

Add rate limit fields to RateLimitException

2.2.5

Add scroll to contacts and users

2.2.4

Add phone attribute
Fix infinite recursive call on get conversation parts

2.2.3

Add next page size check for pagination

2.2.2

Add data_type for bulk user actions

2.2.1

• Add attachment support for replies
• Fix remove user from company bug

2.2.0

• Include company custom attributes when updating a user with an embedded company object
• Include support for Personal Access Token API access