Bump v0.16.0

Bump v0.15.1

Add date filtering charge list

Bump v0.14.0

Version 0.13.0 release

Bump 0.12.0 (#57)

* [Added] Add tests for list method (#50)

* [Added] Add list events method for Charge (#48)
* [Added] Add accept method for Dispute (#47)
* [Added] Add Document API (#46)
* [Added] Add Chain API (#45)
* [Added] Add Capability API (#44)
* [Added] Add expire method for Charge (#43)
* [Added] Add retrieve method for Source (#42)

* [Added] Add update method for Account (#34)

* [Added] Add destroy method for Link (#39)

* [Added] Add Card.retrieve(customer_id, card_id) method (#37)

* [Added] Add testing for 3.9 (#40)

* [Removed] Remove testing for 3.5 (EOL) (#40)

Please upgrade to this version before October 20, 2020. After this da…

…te, the certificate pinned on older versions will expire and prevent this library from functioning.

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