updated sys and created publi

publi/node_modules/liftoff/lib/find_cwd.js

@@ -0,0 +1,18 @@
+const path = require('path');
+
+module.exports = function (opts) {
+  if (!opts) {
+    opts = {};
+  }
+  var cwd = opts.cwd;
+  var configPath = opts.configPath;
+  // if a path to the desired config was specified
+  // but no cwd was provided, use configPath dir
+  if (typeof configPath === 'string' && !cwd) {
+    cwd = path.dirname(path.resolve(configPath));
+  }
+  if (typeof cwd === 'string') {
+    return path.resolve(cwd);
+  }
+  return process.cwd();
+};