Add publisheronly token role (#272)

* Adding support for publisheronly role for client token creation

Release 4.8.1 (#270)

* Fixes a bug with Archive#create

DEVX-6803: Adding Captions API (#267)

* Adding Captions API functionality to the library

DEVX-6823/DEVX-7080/DEVX-6829/DEVX-6830: Broadcast and Dial updates (#…

…266)

* DEVX-6823: updating comments for Sip#dial

* DEVX-7080: adding hasAudio & hasVideo to Broadcast

* DEVX-6829: adding maxBitRate property to Broadcast

* DEVX-6830: adding hlsStatus to Broadcast

* Bumping patch version

* Updating changelog

Merge pull request #265 from opentok/dev

Version 4.7.0

Merge pull request #261 from opentok/dev

Version 4.6.0

Merge pull request #258 from opentok/dev

Version 4.5.1

Merge pull request #252 from opentok/dev

Version 4.5.0

Merge pull request #245 from opentok/dev

Version 4.4.0

Merge pull request #240 from opentok/dev

Version 4.3.0