node: pass headers option to pool.

lib/node/fullnode.js

@@ -123,6 +123,7 @@ function FullNode(options) {
     proxyServer: this.options.proxyServer,
     preferredSeed: this.options.preferredSeed,
     ignoreDiscovery: this.options.ignoreDiscovery,
+    headers: this.options.headers,
     port: this.options.port,
     spv: false
   });

lib/node/spvnode.js

@@ -76,6 +76,7 @@ function SPVNode(options) {
     identityKey: this.options.identityKey,
     maxPeers: this.options.maxPeers,
     ignoreDiscovery: this.options.ignoreDiscovery,
+    headers: this.options.headers,
     selfish: true,
     spv: true
   });