UI notifications from the QuickFind relocated in QuickFindWidget.
Changes QuickFind progress indicator from dots to percentage.

Thanks Robin for the good idea.
Add a spacer to QuickFindWidget to avoid buttons moving.
Prepare for re-work of the quickfind system.
First implementation of the quickfind multiplexer.
Wire the new QFMux into the crawlerWidget.
Implement correctly working directions in QuickFind.

The behaviour of '/', '?', '#', '*', 'n' and 'N' are now like their vim
counterparts.
Rework of QuickFind to support incremental search.
Implements incremental quicksearches.
Add an option to enable/disable incremental quickfind.

This will be on by default for both new installs and upgrade.
Incremental QF now restores initial selection when no match.
Closing the QFW aborts the incremental QF.