Addnew sheets (armor, weapons, malefica) and v13 support

node_modules/liftoff/lib/build_config_name.js

@@ -0,0 +1,17 @@
+module.exports = function (opts) {
+  opts = opts || {};
+  var configName = opts.configName;
+  var extensions = opts.extensions;
+  if (!configName) {
+    throw new Error('Please specify a configName.');
+  }
+  if (configName instanceof RegExp) {
+    return [configName];
+  }
+  if (!Array.isArray(extensions)) {
+    throw new Error('Please provide an array of valid extensions.');
+  }
+  return extensions.map(function (ext) {
+    return configName + ext;
+  });
+};