Fix is_unique_account wrt updated active key
Fix is_unique_account wrt updated active key

Previously a wallet account was considered different from its blockchain
counterpart if the active key had been updated. This is no longer the
case.

FollowMyVote/bitshares,bitshares/bitshares,bitsuperlab/cpp-play,camponez/bitshares,bitshares/devshares,bitsuperlab/cpp-play,bitshares/bitshares,bitshares/bitshares,frrp/bitshares,camponez/bitshares,bitsuperlab/cpp-play,jakeporter/Bitshares,RemitaBit/Remitabit,bitsuperlab/cpp-play,FollowMyVote/bitshares,Ziftr/bitshares,bitshares/bitshares-0.x,dacsunlimited/dac_play,dacsunlimited/dac_play,drltc/keyid,dacsunlimited/dac_play,FollowMyVote/bitshares,dacsunlimited/dac_play,bitshares/devshares,FollowMyVote/bitshares,camponez/bitshares,jakeporter/Bitshares,camponez/bitshares,camponez/bitshares,Ziftr/bitshares,camponez/bitshares,bitsuperlab/cpp-play,bitshares/bitshares-0.x,bitshares/devshares,drltc/keyid,drltc/keyid,bitshares/devshares,bitshares/bitshares-0.x,jakeporter/Bitshares,jakeporter/Bitshares,bitshares/devshares,jakeporter/Bitshares,RemitaBit/Remitabit,bitshares/bitshares,Ziftr/bitshares,bitsuperlab/cpp-play,bitshares/bitshares,frrp/bitshares,FollowMyVote/bitshares,RemitaBit/Remitabit,bitshares/devshares,frrp/bitshares,RemitaBit/Remitabit,dacsunlimited/dac_play,jakeporter/Bitshares,frrp/bitshares,bitshares/bitshares-0.x,bitshares/bitshares-0.x,bitshares/bitshares,drltc/keyid,frrp/bitshares,FollowMyVote/bitshares,frrp/bitshares,bitshares/bitshares-0.x,dacsunlimited/dac_play,RemitaBit/Remitabit,Ziftr/bitshares,RemitaBit/Remitabit