Changes for REDIPS.dialog

1.4.1
- REDIPS namespace created if is not already defined in another REDIPS package (var REDIPS = REDIPS || {};)
- added REDIPS.event at the bottom

1.4.0
- <div id="dialog"> changed to <div id="REDIPSdialog">
- button "Close" moved to title bar
- added support for YouTube
- dialog box position changed to "fixed" (instead of "absolute")
- class names renamed to avoid collision

1.3.0
- fixed bug with properties op_high, op_low and fade_speed
- enabled passing parameter to the user function