Custom sorting of the project overview tabs

[D4gma]

As stated in the 2.0 suggestions thread, I'd like to have an option to organize the three columns (words, status/importance, included flag) the way I feel more confortably with. That would be a nice feature to always have an eye of what is really important for you.

For example I love the see the status column before all others because I open/close nW a lot of times during the day (and night) and I did assigned precise colors to my docs to easily locate the file I was editing before closing the app.

Also a dropdown menu for status colored icons would be a superb addition to quickly update status. Thanks.

[vkbo]

Implementing movable columns is a bit of a pain, so since there are only two additional columns, I'll instead make the content up to the user. It will amount to the same thing.

Adding the status colours to the dropdown menu shouldn't be a problem either.

[vkbo]

Context menu entries to change item status has been added as a part of the major project tree updates in #1079.