Update wallet types, and make wallet methods adhere to new structure

types.go

@@ -256,9 +256,9 @@ type Chat struct {
 
 // WalletAPI holds data for sending to API
 type WalletAPI struct {
-	Method string  `json:"method"`
-	Params wParams `json:"params"`
-	Result wResult `json:"result"`
+	Method string   `json:"method,omitempty"`
+	Params *wParams `json:"params,omitempty"`
+	Result *wResult `json:"result,omitempty"`
 }
 type wOptions struct {
 	Name string `json:"name"`

wallet.go

@@ -22,18 +22,22 @@ func walletAPIOut(keybasePath string, w WalletAPI) (WalletAPI, error) {
 }
 
 // TxDetail returns details of a stellar transaction
-func (k *Keybase) TxDetail(txid string) (wResult, error) {
-	m := WalletAPI{}
+func (k *Keybase) TxDetail(txid string) (WalletAPI, error) {
+	m := WalletAPI{
+		Params: &wParams{},
+	}
 	m.Method = "details"
 	m.Params.Options.Txid = txid
 
 	r, err := walletAPIOut(k.Path, m)
-	return r.Result, err
+	return r, err
 }
 
 // StellarAddress returns the primary stellar address of a given user
 func (k *Keybase) StellarAddress(user string) (string, error) {
-	m := WalletAPI{}
+	m := WalletAPI{
+		Params: &wParams{},
+	}
 	m.Method = "lookup"
 	m.Params.Options.Name = user