Improvement regarding tabs overflow

[Niko Sams]

Hi,

Some time ago I did experiments regarding tabs in a branch "browser-like-tabs".
The basic idea was to make tabs behave like they do in web browsers:
- when you click a link the link is opened in the current tab
- when you press a modifier (Ctrl) and click a link the link is opened
in a new tab
- you have back and forward navigation per tab
- there is an explicit action for "new tab"
- pressing the modifier when clicking a bookmark or opening a new url
opens it in a new tab

That way the user decides how to organize the opened files. Eg. one
tab per file he works on,
and one tab for browsing the code.


Niko