Wrapped the DeskNoteTextView into a BScrollView (should fix #12)

[jsteinaker]

-When resizing the view, the space obtained is now used to show any extra lines the note may have.
-When deleting lines, the view now scrolls back to the right place.

If one or two people can try this it would be great, seems to be working here.

[humdingerb]

This appears to have killed the context menu.
And I cannot make scrollbars appear... What are steps to produce those?
Plus, what's the problem being solved with those scrollbars? Without this PR, the text gets line-broken and flows back when resizing the window and deleting lines seems to work OK, too.

I also agree with what you wrote in #18, scrollbars don't quite fit the post-it idea of small notes. Nicer would be to implement linking to other documents that would open in their preferred apps.

[jsteinaker]

You're right with the context menu. Fixed, thanks for spotting that!

Bug solved is described on #12, steps to reproduce are on the first two comments (two different ways). About the scrollbars: I don't want them! I was expecting them because that is what BScrollView is supposed to do, but I'm 100% happy with the view scrolling properly this way. Give it a try again, if anything, the view scrolls more "naturally" this way.

Thanks for testing!

[humdingerb]

OK, I looked at #18 and wasn't sure what's the issue...
I agree, works nicely now. Go on and merge, and close #18 as 'won't fix'. :)