* 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

Account
* get_bandwidth refactored
* get_account_bandwidth added
Cli
* power added for showing vote power and bandwidth
Steem
* Improvements and refactoring for get_config, get_network, get_hardfork_properties, get_current_median_history, get_reward_funds, get_feed_history, get_reserve_ratio and get_dynamic_global_properties
Steemnoderpc
* get_network moved to graphenerpc
Chains
* removed to beemgraphenebase/chains.py
Unit tests
* add unit test for power for cli
* golos test reduced
*

Transactionbuild
* Automatic Signing with owner key removed
Beembase/account and beembase/bip38 removed as they are using beemgraphenebase/bip38 and beemgraphenebase/account

Wallet contains steem instance