Qtractor fixed for Qt 4.2

In a rogue attempt to fix and adapt to Qt 4.2, the track-list widget which is nothing more than the tabular widget at the main window left-pane, has been completely rewritten from scratch. It is now based on the custom scroll-view class, as all other scrollable widgets are, instead of being a natively bloated QTableView derivative. The fine print now says the track-list vs. track-view vertical scrolling is now back to pixel resolution and looks way better too.

But not so fast pal, there's some noticeable drawbacks lurking around and one is certain that quite evident as sessions now load faster :)

CVS version for this breakthrough is 0.0.1.522 and counting. Enjoy.