[GS] Update regression tests
Merge branch 'develop' of https://github.com/BitShares/bitshares_toolkit into develop
[GS] Update regression tests
[Urgent] Resolve #864

A pointer was being dereferenced without checking if it was valid. I'm
not sure how this never created an issue on the testnet...
Merge branch 'develop' of github.com:BitShares/bitshares_toolkit into develop
Progress on #865

Closing price was not being updated on the each_hour and each_day
granularity as new blocks were processed.
Reword assert error
Ensure valid interest rate on margin call
[GS] Update regression tests
Prevent wif_to_key from crashing with invalid input (should fix problem from a user's crash report)
updating vote data structures
Merge branch 'develop' of github.com:BitShares/bitshares_toolkit into develop
Fix APR formatting in ledger

Previously it printed the absolute value with a percent symbol, i.e. .
Merge branch 'develop' of github.com:BitShares/bitshares_toolkit into develop
get_interest_owed test in nathan_tests
bump testnet
Merge branch 'develop' of https://github.com/BitShares/bitshares_toolkit into develop
replace testnet seed nodes
Fix interest rate calculation
bump testnet