Prevent negative amounts for escrow
Prevent negative amounts for escrow

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