* Fix bug in ecda (convert mpz into int when not supported)

* Add option to use a derived WIF from coldcard hardware wallet to derive a new account password
* beempy passwordgen and beempy importaccount have now a new option import-coldcard
* beempy passwordgen handles now password generation and import, whereas beempy keygen handles BIP39 related key generation.
* refactoring and better unit testing

* Implement _get_operation_filter and use filter operations in history and history_reverse on the https://api.hive.blog api node

* Adapt account history on api changes and fixes issue #267
* Speed up history call, when limit is below 1000
* Improve unit tests for account history

* Fixed a bug when using skip_account_check=True
* Refactor code in Account
* Add more unit tests

* Add option add_tor to config storage, which allows it to use beempy in tails
* Remove Events requirements, beem.notify and beemapi.websocket, as it is not well tested and there are no websocket api nodes available on hive
* Remove unnecessary requirements (pylibscrypt and future)

Fix for #263

* New SupportedByHivemind exception has been added

* Fix beempy witnessfeed for HF24
* Fix more hbd renaming in beempy
* improved RankedPosts class
* New AccountPosts class for account feed and more
* Comment class has been cleaned up, use_tags_api has been replaced by api

* improved get_discussions calls, fallback to condenser when tags api not available
* Fix detection when content does not exists

* Add new operation ids for HF 24
* Remove remaining py2 code
* Run unit tests on beta.openhive.network
* Fix compatibility issues with HF 24
* account get_follow_count, get_followers and get_following have been fixed

* Add hbd_interest_rate to beempy witnessproperties