chore: bump sdk to v0.15.2 (#76)

go.mod

@@ -30,6 +30,6 @@ require (
 replace github.com/keybase/go-keychain => github.com/99designs/go-keychain v0.0.0-20191008050251-8e49817e8af4
 
 // this include a few extra debug helpers on top of cosmos v0.38.3 but original also works fine
-replace github.com/cosmos/cosmos-sdk => github.com/fetchai/cosmos-sdk v0.15.1
+replace github.com/cosmos/cosmos-sdk => github.com/fetchai/cosmos-sdk v0.15.2
 
 replace github.com/tendermint/tendermint => github.com/fetchai/cosmos-consensus v0.15.2

go.sum

@@ -119,8 +119,8 @@ github.com/facebookgo/subset v0.0.0-20150612182917-8dac2c3c4870/go.mod h1:5tD+ne
 github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
 github.com/fetchai/cosmos-consensus v0.15.2 h1:XjbSGkFpDE3YyPRirYhUTtyuF6fg3qh31Vxjq5X8GFU=
 github.com/fetchai/cosmos-consensus v0.15.2/go.mod h1:3uBzeHvXTweU0DE0ja1RmM/rxcf+tTajjRCfcF+DG3A=
-github.com/fetchai/cosmos-sdk v0.15.1 h1:1N0rgS3TKxOfeJm6huehYnqJs5iXf9rOjRIf56MptL8=
-github.com/fetchai/cosmos-sdk v0.15.1/go.mod h1:bJFES3AltmFg6QFYZYLFQ6I0SrMQRBLWpRmAi3fhxzE=
+github.com/fetchai/cosmos-sdk v0.15.2 h1:i4V2vAQUwjb57IPuyDsDCtlgAEGHIfEtuTp70v8tdrg=
+github.com/fetchai/cosmos-sdk v0.15.2/go.mod h1:bJFES3AltmFg6QFYZYLFQ6I0SrMQRBLWpRmAi3fhxzE=
 github.com/flynn/noise v0.0.0-20180327030543-2492fe189ae6 h1:u/UEqS66A5ckRmS4yNpjmVH56sVtS/RfclBAYocb4as=
 github.com/flynn/noise v0.0.0-20180327030543-2492fe189ae6/go.mod h1:1i71OnUq3iUe1ma7Lr6yG6/rjvM3emb6yoL7xLFzcVQ=
 github.com/fortytw2/leaktest v1.3.0 h1:u8491cBMTQ8ft8aeV+adlcytMZylmA5nnwwkRZjI8vw=