* 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

Discussions
* Replies_by_last_update and Trending_tags
Blockchain
* get_transaction_hex added
Account
* get_tags_used_by_author added
Docs
* apidifinitions added

Blockchain
* Check if all block could be fetched added
* Thread and Worker class for block fetching added

Account
* _parse_json_data improved and all missing ints and dates added
* json() adapted to _parse_json_data()
Block
* _parse_json_data added, expiration and timestamp are now datetime objects
* property json_transactions and json_operations added, which return trx and ops with date strings
* BlockHeader improved and datetime parsing added
Blockchain
* adapted to new datetime objects
CLI
* adapted to code changes
Comment
* int and dates inside active_votes are parsed
* Missing dates and int are parsed
Market
* date parsing to datetime added to market_history
Vote
* Some improvements
Witness
* _parse_json_data added
* all date and ints are parsed
* Demo added to Witnesses, WitnessesVotedByAccount, WitnessesRankedByVote and ListWitnesses 
beemgraphenebase/types
* datetime handling added to PointInTime
Unit tests
* test_account adapted
* test_export added to test_block
* test in test_comment fixed
* test_export added to test_witness

Comment
* Add example
Steem
* improve docu
Exception
* Add TimeoutException
GrapheneRPC
* add time_limit to implement a timeout for websocket connection
Unit test
* add test for timeout implementation

Account
* Account handling is improved and it is assured that an Account object or an account string name can be used in every function
Readme
* Advantages over the official steem-python library added (fixes #25)

Fix unit tests and WitnessesRankedByVote

Market
* _weighted_average, btc_usd_ticker, steem_btc_ticker and steem_usd_implied added
Witness
* get_votes_sum added to witnesses object
Graphenerpc
* fix handling of WebSocketConnectionClosedException
CLI
* witnessfeed: uses the new market ticker to calculate the current steem_usd price as base. When using support-peg the sbd_usd price is calculated from the internal ticker and used for quote.
* Witness: shows the rank and active rank (when it is below 250). virtual_time_to_block_num is calculated from num_scheduled_witnesses, VIRTUAL_SCHEDULE_LAP_LENGTH2 and vote_sum. This is then used to estimate the next block producing time.
* witnesses uses a proxy now, when set.

* Raise OfflineHasNoRPCException in offline mode, when rpc should be used
* Unit test for beneficiaries
* Fixes bug for python 2.7 in blockchain

CLI
* Add -l option to beempy
* Add -s option for broadcast via steemconnect
* addtoken, listtoken and deltoken added
* Add doc - files for nodelist, steemconnect and node
Storage
* sc2_scope removed from config
* hot_sign_redirect_uri added to config

Readme for last release adapted

Account
* Example added and improved
* same bug fixes
CLI
* pending shows now all pending rewards and rewarsd shows all already received rewards
Steem
* Doku improved
Unit tests
* tests improved

Account
* Parameter accuracy renamed to stop_diff
* Doku for estimate_virtual_op_num improved
* Several improvements and fixes for estimate_virtual_op_num
CLI
* rewards command improved and more paramter added
Comments
* Assure Amount class for all amounts
* is_pending improved
Doku
* tutorial about showing all posts of an account added
Unit tests
* test_account, test_cli and test_comment improved