Switch to next node when ApiNotSupported and node returns Client returned invalid format. Expected JSON!
* enforce utf-8 on node reply parser

* "Bad or missing upstream response" is handled

Block
* switch to condenser when api call does not work on appbase node
* blocknum property returns Null when block is empty
Blockchain
* check improved in  threading blocks
Discussions
* set_next_node_on_empty_reply set to False
Steemnoderpc
* Request Timeout added
Unit tets
* test_account for appbase nodes improved

* stream_threading_performance example added to evaluate threading
* _switch_to_next_node added to Steemnoderpc
* 5 tags restriction removed from post()

Transactionbuilder
* Prepare broadcasting in new appbase format
* Force condenser_api by now
RPCUtils
* Improve detection of conenser_api
Streemnoderpc
* Improved error message for Assert Exception:v.is_object()
beembase.Object
* Add new appbase Operation format
beemgraphenebase.object
* Add handling of new appbase operation format

CLI
* updatenodes added, this command can be used to update the nodes list
NodeList
* update_nodes added, this command reads the metadata from fullnodeupdate, which contain newest nodes information
* add option wss and https fo get_nodes
Unit tests
* use updatenodes in all tests

Account
* Example added for transfer
Nodelist
* Doc added
Steem
* steemconnect integration improved and use_sc2 added
* Docu improved
SteemConnect
* compatible with py2.7
* several improvements
* Examles added
Transactionbuilder
* Integration of steemconnect improved
Wallet
* fix bug
SteemNodeRPC
* fix old and removed parameter n_urls
Doc
* Fix bug in tutorial page

Wallet
* getKeysForAccount added
* getOwnerKeysForAccount, getActiveKeysForAccount, getPostingKeysForAccount added
beemapi
* WorkingNodeMissing is raised when no working node could be found
GrapheneRPC
* cycle([urls]) is replaced by the nodes class
Nodes
* Node handling and management of url and error_counts is performed by the nodes class
* sleep_and_check_retries is moved to the nodes class
* Websocket, steemnodrpc were adpapted to the changes
Unit tests
* new tests for the nodes class
* tests adapted for websocket and rpcutils

Set use_condenser to True
Add unit test for hash_op

Account
* print_info improved (Last Vote added)
* entryId changed to start_entry_id in get_feed, get_blog_entries and get_blog
*rpc.get_account_history moved to _get_account_history
* estimate_account_op added, can be used to fastly get account op numbers from dates or block nums
* history and history_reverse uses estimate_account_op
Exception
* KeyNotFound removed
Memo
* raises MissingKeyError instead of KeyNotFound
Price
* small improvement
Steem
* __repr__ added
Transactionbuilder
* get_potential_signatures, get_transaction_hex and get_required_signatures added
* raises MissingKeyError instead of KeyNotFound
VotesObject
* __contains__, __str__ and __repr__ added
Wallet
* raises MissingKeyError instead of KeyNotFound
Witness
* __contains__, __str__ and __repr__ added to WitnessObject
Steemnoderpc
* small improvements
Operationsid
* producer_reward added
Unit tests
* new function added and tests adapted to changes

Blockchainobject
* auto_clean function added. Everytime a new item is stored into the cache, all expired elements are removed.
* The __contains__ function sets now data ot None, when the date is expired, in order to reduce memory consumption
CLI
* threading for pingnode added. with --threading, all nodes are tested simultanously.
Steemnoderpc
* Error count and exception improved when only one node is available
Graphenerpc
* regests.session is stored as signelton
* requests_retry_session removed
* shared_session_instance and set_session_instance is used to get and set the global request.session object
* create_ws_instance added; A websocket is created everytime and the singleton is removed
* error_cnt and num_retries_call handling improved
RpcUtils
* sleep_and_check_retries improved
Examples
* benchmark_node2 uses threads (one thread for each node)
* memory_profiler2 added to check memory consumption for creating multiple account objects
Unit tests
* test for objectcache improved

Formatting of all doc parts improved
Logo and icon added
Doc structure improved
quickstart improved

steem
* add option use_condenser
steemnoderpc
* refactoring
Graphenerpc
* condenser_api calls shen use_condenser=True is set.
unit tests
* test_comment and test_discussion uses 19.4 nodes now

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
*

Account
* Json export improved
* All times are converted to datetime
* Doku about ignore for muting improved
* Accounts and AccountsObject added
* mute for Mute another account added
* get_muters and get_mutings added
CLI
* refactoring of follows and following
* muter and muting for showing muted and muting accounts
* mut added
* doku for unfollow improved
Comment
* json() improved
Unit tests
* test_account adapted to steemit/steem bug for appbase
* test_json_export added
* test for muter and muting for cli added

cli
* Add price prediction for buy and sell of cli
steemnoderpc
* refactoring
Exceptions
* CallRetriesReached added
unit tests
* tests for test_cli added

account
* set_withdraw_vesting_route added
cli
 * powerdownroute, convert and interest added
steemnoderpc
* error messages improved
* _check_api_name added
* ApiNotSupported when Api is not supported by node but exists
graphenerpc
* error messages improved
rpcutils
* error messages in sleep_and_check_retries improved
unit tests
* new function added

Graphenerpc
* some refafctoring
Steemnoderpc
* fix next_node_on_empty_reply

set_next_node_on_empty_reply added to all discussions and RecentByPath and RecentReplies

Comment
* Check added for empty returns
Market
* refactoring
* Checks added fro empty rpc returns
storage
* default nodes are taken from utils.get_node_list
Vote
* Check added for empty rpc calls
* Check added for Unkown key return
Exception
* UnkownKey added
Steemnoderpc
* set_next_node_on_empty_reply added, to add a check on empty returns on the next rpc call
* Refactoring
* UnkownKey exception added
Transaction
* refactoring
Unit tests
test_vote improve and check for VoteDoesNotExistsException added

account
* function for reputation to score calculation
* Doku improved
amount
* better handling of offline mode
steem
* Doku improved
transactionbuilder
* handing of appbase for tx verify and broadcast improved
utils
* node list added as function
* not needed function removed
steemnoderpc
* handling of server errors improved
objects
* Amount fixed for appbase
exception
* RPCErrorDoRetry added, when a rpc call should be retried
grapherpc
* Handling of server error 500 to 511 added
* better handling when get_config does not work
unit tests
* nodes and nodes_appbase are take from utils
* keys is used instead of wif for Steem()
* unit test for broadcast added
* unit test for appbase for verify added
* test_operations added
* test_types added

Steemnoderpc
* self.errror_cnt_call used instead of local variable doRetryCount
Graphenerpc
* num_retries_call added for setting a max number of retries on a rpc call
* self.n_urls added for getting the number of given nodes
* sleep on retry removed, when switching over to the next node
self.error_cnt_call used for counting rpc call retries
rpcutils
* sleep_and_check_retries improved
Unit tests
num_retries added
test_golos reduced

blockchain
* reduced times in which get_current_block_num is called
* when last_fetched_block_num is given, get_current_block_num is only called when block_number is greater than last_fetched_block_num
storage
* default nodes list enhanced
steemnoderpc
* Service Temporarily Unavailable and Bad Gateway added to exception detection
graphenerpc
* check for Service Temporarily Unavailable and Bad Gateway
* Improved handling of Client returned invalid format. Expected JSON! when output is int
Unit test
test_utils fixed