Merge branch 'lpinca-fix/error-stack'

* lpinca-fix/error-stack:
  Create a `.stack` property on `FigoError` object.

Author: mfilenko

lib/errors.js

@@ -7,11 +7,12 @@
 // - **error_description** (`String`) - the error description
 //
 var FigoError = function(error, error_description, errno) {
+  Error.captureStackTrace(this, FigoError);
+
   this.name = 'FigoError';
   this.error = error;
-  this.error_description = error_description;
+  this.message = this.error_description = error_description;
   this.errno = errno;
-  this.stack = (new Error()).stack;
 };
 FigoError.prototype = Object.create(Error.prototype);
 FigoError.prototype.constructor = FigoError;
@@ -20,5 +21,5 @@ FigoError.prototype.toString = function() {
 };
 
 module.exports = {
-    FigoError: FigoError
+  FigoError: FigoError
 };