* Fix update_account_jsonmetadata and add posting_json_metadata property to Account
* Add Ledger Nano S support
* beempy -u activates ledger signing
* beempy -u listkeys shows pubkey from ledger
* beempy -u listaccounts searches for accounts that have pubkey derived from attached ledger
* beempy -u keygen creates pubkey lists that can be used for newaccount and changekeys
* new option use_ledger and path for Hive

* add account get_notifications and mark_notifications_as_read
* beempy notifications has been added
* bridge api support added

Unit test added for keygen and suggest()

CONSTANTS
* STEEM_REVERSE_AUCTION_WINDOW_SECONDS_HF20 added

Nodelist
* nodes information updated

Steem
* get_dust_threshold() improved and get_config used
* hardfork checks improved
* hardfork property improved by using get_hardfork_properties function

Changelog.rst added and Issue #80 fixed

* steemd.pevo.science and steemd.steemgigs.org removed from Nodelist
* bug fixed in allow and disallow for CLI
* fix #64
* Show results for get_user_data and get_feature_flags in Conveyor

* set_next_node_on_empty_reply added to some appbase rpc calls

CLI
* upvote and downvote fixed
Snapshot
* refactoring
* update_vote and build_vp_arrays added for showing vote power history
Examples
* account_vp_over_time added

Snapshot
* impoved and STEEM and SBD history added
* Documentation added
* get_data, reset, build functions added

Snapshot added
* This class can be used to access old account states. At the moment, only changes in vests are tracked over time.
* example added for plotting SP over time

Steem
* last_node added and refresh of json_config data is forced on node switch

Relase nodes for 0.19.45 added

Discussions
* Examples added to all classes
* Discussions add for fetching more than 100 posts