* In Javascript menu there should be an option of Include common libraries like jQuery etc. When click it should write in text editor the following for example:
"<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>"
* There should be a tab or bar at top to show php errors.
* why there is no container for constants?

* why this line. it should be removed.
