Merge pull request #456 from pinheadmz/spvfix

fix SPV mode

bin/spvnode

@@ -8,7 +8,7 @@ const assert = require('assert');
 const SPVNode = require('../lib/node/spvnode');
 const Outpoint = require('../lib/primitives/outpoint');
 
-const node = SPVNode({
+const node = new SPVNode({
   config: true,
   argv: true,
   env: true,
@@ -16,6 +16,7 @@ const node = SPVNode({
   logConsole: true,
   logLevel: 'debug',
   db: 'leveldb',
+  memory: false,
   persistent: true,
   workers: true,
   listen: true,