Fix compiler warnings
Fix compiler warnings

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