Ledger integration (#931)

Merges the keybase and Ledger code from go-crypto (which is no more) into the SDK
Adds support for Ledger into gaiacli
Cherry-picks updated error handling from #1158

cmd/gaia/app/app.go

@@ -4,7 +4,7 @@ import (
 	"encoding/json"
 	"os"
 
-	abci "github.com/tendermint/abci/types"
+	abci "github.com/tendermint/tendermint/abci/types"
 	tmtypes "github.com/tendermint/tendermint/types"
 	cmn "github.com/tendermint/tmlibs/common"
 	dbm "github.com/tendermint/tmlibs/db"

cmd/gaia/app/app_test.go

@@ -5,7 +5,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/auth"
 	"github.com/cosmos/cosmos-sdk/x/stake"
 
-	abci "github.com/tendermint/abci/types"
+	abci "github.com/tendermint/tendermint/abci/types"
 )
 
 func setGenesis(gapp *GaiaApp, accs ...*auth.BaseAccount) error {

cmd/gaia/app/genesis.go

@@ -5,7 +5,7 @@ import (
 	"errors"
 
 	"github.com/spf13/pflag"
-	crypto "github.com/tendermint/go-crypto"
+	"github.com/tendermint/tendermint/crypto"
 	tmtypes "github.com/tendermint/tendermint/types"
 
 	"github.com/cosmos/cosmos-sdk/server"

cmd/gaia/app/genesis_test.go

@@ -6,7 +6,7 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/x/auth"
 	"github.com/stretchr/testify/assert"
-	crypto "github.com/tendermint/go-crypto"
+	"github.com/tendermint/tendermint/crypto"
 )
 
 func TestToAccount(t *testing.T) {

cmd/gaia/cli_test/cli_test.go

@@ -17,7 +17,7 @@ import (
 	"github.com/cosmos/cosmos-sdk/x/auth"
 	"github.com/cosmos/cosmos-sdk/x/gov"
 	"github.com/cosmos/cosmos-sdk/x/stake"
-	crypto "github.com/tendermint/go-crypto"
+	"github.com/tendermint/tendermint/crypto"
 )
 
 func TestGaiaCLISend(t *testing.T) {

cmd/gaia/cmd/gaiad/main.go

@@ -5,7 +5,7 @@ import (
 
 	"github.com/spf13/cobra"
 
-	abci "github.com/tendermint/abci/types"
+	abci "github.com/tendermint/tendermint/abci/types"
 	tmtypes "github.com/tendermint/tendermint/types"
 	"github.com/tendermint/tmlibs/cli"
 	dbm "github.com/tendermint/tmlibs/db"

cmd/gaia/cmd/gaiadebug/hack.go

@@ -8,8 +8,8 @@ import (
 	"path"
 
 	"github.com/spf13/cobra"
-	abci "github.com/tendermint/abci/types"
-	crypto "github.com/tendermint/go-crypto"
+	abci "github.com/tendermint/tendermint/abci/types"
+	"github.com/tendermint/tendermint/crypto"
 	cmn "github.com/tendermint/tmlibs/common"
 	dbm "github.com/tendermint/tmlibs/db"
 	"github.com/tendermint/tmlibs/log"

cmd/gaia/cmd/gaiadebug/main.go

@@ -14,7 +14,7 @@ import (
 	sdk "github.com/cosmos/cosmos-sdk/types"
 	"github.com/cosmos/cosmos-sdk/x/auth"
 	"github.com/spf13/cobra"
-	crypto "github.com/tendermint/go-crypto"
+	"github.com/tendermint/tendermint/crypto"
 )
 
 func init() {