- refactored elasticsearch AR to make type and index available in
  instantiate(), issue #1313

fixes #2281

fixes #2220

issue #1797

Improved `QueryBuilder::buildLimit()` to support big numbers

added quick and dirty code highlighing and got much faster

realpath(false) = current working directory.
This can cause problems with getAlias() which returns false.

see yiisoft/yii#3113