parse client version

lib/server.js

@@ -512,8 +512,38 @@ WalletService.prototype.addAccess = function(opts, cb) {
   });
 };
 
+WalletService.prototype._parseClientVersion = function() {
+  function parse(version) {
+    var v = {};
+
+    if (!version) return null;
+
+    var x = version.split('-');
+    if (x.length != 2) {
+      v.agent = version;
+      return v;
+    }
+    v.agent = _.contains(['bwc', 'bws'], x[0]) ? 'bwc' : x[0];
+    x = x[1].split('.');
+    v.major = parseInt(x[0]);
+    v.minor = parseInt(x[1]);
+    v.patch = parseInt(x[2]);
+
+    return v;
+  };
+
+  if (_.isUndefined(this.parsedClientVersion)) {
+    this.parsedClientVersion = parse(this.clientVersion);
+  }
+  return this.parsedClientVersion;
+};
+
 WalletService.prototype._clientSupportsBIP44 = function() {
-  return !!this.clientVersion && !(/^bw.-0\.[01]\./.test(this.clientVersion));
+  var version = this._parseClientVersion();
+  if (!version) return false;
+  if (version.agent != 'bwc') return true; // Asume 3rd party clients are up-to-date
+  if (version.major == 0 && version.minor <= 1) return false;
+  return true;
 };
 
 /**