Twilio

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**Api**
- Add `smart_encoded` param for Messages
- Add `identity_sid` param to IncomingPhoneNumbers create and update

**Preview**
- Make 'address_sid' and 'email' optional fields when creating a HostedNumberOrder
- Add AuthorizationDocuments preview API.

**Proxy**
- Initial Release

**Wireless**
- Added `ip_address` to sim resource

**Twiml**
- Rename `number` to `phone_number` in Voice Number TwiML. *(breaking change)*
- Rename `message` to `body` in Messaging TwiML. *(breaking change)*

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**Preview**
- Add `acc_security` (authy-phone-verification) initial api-definitions

**Taskrouter**
- [bi] Less verbose naming of cumulative and real time statistics

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**Chat**
- Make member accessible through identity
- Make channel subresources accessible by channel unique name
- Set get list 'max_page_size' parameter to 100
- Add service instance webhook retry configuration
- Add media message capability
- Make `body` an optional parameter on Message creation. *(breaking change)*

**Notify**
- `data`, `apn`, `gcm`, `fcm`, `sms` parameters in `Notifications` create resource are dicts/objects instead of strings. Passing manually stringified json will continue to work.

**Taskrouter**
- Add new query ability by TaskChannelSid or TaskChannelUniqueName
- Move Events, Worker, Workers endpoint over to CPR
- Add new RealTime and Cumulative Statistics endpoints

**Video**
- Create should allow an array of video_codecs.
- Add video_codecs as a property of room to make it externally visible.

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**Api**
- Add `sip_registration` property on SIP Domains
- Add new video and market usage category keys

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- Added last_response and last_request to http_client

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**Sync**
- Add support for Streams

**Wireless**
- Added DataSessions sub-resource to Sims.