Implemented various additional methods:
Unfortunately my XHTML fix is in my master, it is already in different pull request.
Replaced entity with UTF-8 character for XHTML compatibility.
Merge branch 'dialog' of github.com:rafalwrzeszcz/scripty2 into dialog
Fixed to bringToFront().
Window moving routines including window centering.
AlwaysOnTop automaticly brings window on top.
Fixed fluid interface in some methods.
Renamed already existing _position() method to center() instead of cr…
…eating new method.
Added testing example, fixed syntax error and added duration parameter.