Beem

------
* Bip39 and Bip32 support has been added to beempy keygen
* Privatekey derivation based on Bip39/Bip22 has been added
* Several unit tests have been added
* price/market fix for custom nodes (thanks to crokkon)
* Replace brain key generation by BIP39 for beempy keygen
* Remove password based key generation for beempy changekeys
* Improved yaml header for beempy download

------
* bugfix for beempy post

------
* post detects now communities and set category correctly
* option added to remove time based suffix in derive_permlink
* beempy download added to save posts as markdown file
* beempy post is improved, automatic image upload, community support, patch generation on edit
* Unit test added for beempy download

------
* setproxy function added to Account (thanks to flugschwein)
* addproxy and delproxy added to beempy (thanks to flugschwein)
* updatenodes works in shell mode
* Fix offline mode for Hive
* add about command to beempy
* Add hive node
* update_account function added to blockchaininstance
* normalize added to PasswordKey, so that a Brainkey can be set as PasswordKey
* Fixed vote percentage calculation when post rshares is negative
* new beempy command changekeys
* beempy keygen can be used to generate account keys from a given password and is able to generate new passwords
* add option to beempy keygen to export pub account keys as json file
* add option to beempy newaccount and changekeys to import pub account keys from a json file

------
* new chain ID for HF24 on HIVE has been added
* set hive as default for default_chain
* get_steem_nodes added to NodeList
* Prepared for Hive HF 24
* steem object in all classes is replaced by blockchain
* Hive class has been added
* Hive and Steem are now BlockChainInstance classes
* Hive and Steem have now is_hive and is_steem properties
* Each class has now blockchain_instance parameter (steem_instance is stil available)
* shared_blockchain_instance and set_shared_blockchain_instance can be used for Hive() and Steem() instances
* token_symbol, backed_token_symbol and vest_token_symbol
* Rename SteemWebsocket to NodeWebsocket and SteemNodeRPC to NodeRPC
* Rshares, vote percentage and SBD/HBD calculation has been fixed for votes
* post_rshares parameter added to all vote calculations
* Account class has now get_token_power(), get_voting_value() and get_vote_pct_for_vote_value()
* HF 23 and HF24 operations were added thanks to flugschwein
* Downvote power was added to Snapshot thanks to flugschwein

-------
* add click_shell to turn beempy into a shell utility with autocompletion
* new click_shell added as requirements
* Installer added for beempy on windows
* Add get_hive_nodes and get_steem_nodes functions to NodeList
* beempy command resteem renamed to reblog
* When using in shell mode, beempy walletinfo --unlock can be used to unlock the wallet and walletinfo --lock to unlock it again
* Add get_blockchain_name to Steem, returns either steem or hive
* Add switch_blockchain to Steem, can be used to switch between hive and steem
* Storage has now a new config "default_chain", can be either hive or steem
* updatenode --hive switches to hive and use hive nodes
* updatenode --steem switches to steem and use steem nodes