Fix compiler warnings
Fix compiler warnings

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