Simple refactoring of gov to use protobuf for store encoding (for everything besides proposal)

simapp/app.go

@@ -1,6 +1,7 @@
 package simapp
 
 import (
+	"github.com/cosmos/cosmos-sdk/x/gov/types"
 	"io"
 	"os"
 
@@ -207,7 +208,7 @@ func NewSimApp(
 		AddRoute(distr.RouterKey, distr.NewCommunityPoolSpendProposalHandler(app.DistrKeeper)).
 		AddRoute(upgrade.RouterKey, upgrade.NewSoftwareUpgradeProposalHandler(app.UpgradeKeeper))
 	app.GovKeeper = gov.NewKeeper(
-		app.cdc, keys[gov.StoreKey], app.subspaces[gov.ModuleName], app.SupplyKeeper,
+		types.NewAminoGovCodec(app.cdc), keys[gov.StoreKey], app.subspaces[gov.ModuleName], app.SupplyKeeper,
 		&stakingKeeper, govRouter,
 	)