Pach release 0.4.4.1

[Jürgen Nicklisch-Franken]

I've pushed a patch with a minor fix for the recurring query to open a
file:

      * Doesn't attempt a background build, when there is no open
        package.
      * Doesn't keep bugging the user if the session they select does
        not have a valid package
      * Improved title on package open dialog
      * Updated the manual for better Ubuntu installation description

Please note that Leksah doesn't work with GHC version 6.10.2 currently,
cause gtk2hs has problems with the changes on finalizers. Hope they will
fix this soon.

Jürgen