persist feeLevel as part of txp

lib/model/txproposal.js

@@ -46,6 +46,7 @@ TxProposal.create = function(opts) {
   x.requiredRejections = Math.min(x.walletM, x.walletN - x.walletM + 1),
   x.status = 'temporary';
   x.actions = [];
+  x.feeLevel = opts.feeLevel;
   x.feePerKb = opts.feePerKb;
   x.excludeUnconfirmedUtxos = opts.excludeUnconfirmedUtxos;
 
@@ -98,6 +99,7 @@ TxProposal.fromObj = function(obj) {
   });
   x.outputOrder = obj.outputOrder;
   x.fee = obj.fee;
+  x.feeLevel = obj.feeLevel;
   x.feePerKb = obj.feePerKb;
   x.excludeUnconfirmedUtxos = obj.excludeUnconfirmedUtxos;
   x.addressType = obj.addressType;

lib/server.js

@@ -1860,6 +1860,7 @@ WalletService.prototype.createTx = function(opts, cb) {
               outputs: opts.outputs,
               message: opts.message,
               changeAddress: changeAddress,
+              feeLevel: opts.feeLevel,
               feePerKb: feePerKb,
               payProUrl: opts.payProUrl,
               walletM: wallet.m,

test/integration/server.js

@@ -2286,6 +2286,7 @@ describe('Wallet service', function() {
             tx.isTemporary().should.equal.true;
             tx.amount.should.equal(helpers.toSatoshi(0.8));
             tx.feePerKb.should.equal(123e2);
+            should.not.exist(tx.feeLevel);
             server.getPendingTxs({}, function(err, txs) {
               should.not.exist(err);
               txs.should.be.empty;
@@ -2766,6 +2767,7 @@ describe('Wallet service', function() {
               should.not.exist(err);
               should.exist(txp);
               txp.feePerKb.should.equal(180e2);
+              txp.feeLevel.should.equal('economy');
               done();
             });
           });
@@ -2805,6 +2807,7 @@ describe('Wallet service', function() {
               should.not.exist(err);
               should.exist(txp);
               txp.feePerKb.should.equal(200e2);
+              txp.feeLevel.should.equal('normal');
               done();
             });
           });