[JES] Remove old version of get_account_history since having both wasn't playing nicely. Update the package version. Update API docs with new parameters for get_account_history

Deprecated but still working:
vestingSteem() replace with: vestingHive()
pricePerSteem() replace with: pricePerHive()
vesting_steem variable input in estimateAccountValue() replace with: vesting_hive

Changed "Failover Threshold" output to so it looks less like an error than information