qtide.start([style])
Starts the QLua Integrated Development Environment (IDE)
and ensure that the main window is visible.
This function is called implicitely when program qlua
is executed with option -ide.
The optional argument style is a string
specifying the default IDE style.
When this argument is not specified
the last used style is assumed.
The recognized IDE styles are:
"sdi"for an IDE with multiple main windows,"mdi"for an IDE with subwindows in the style of Windows,"tab"groups all editors into a single tabbed window."tab2"groups all editors and the console into a single tabbed window.