GTK-Launch 1.1

GTK-Launch is a small GTK program launcher.
Its the equivalent of "Run Command" in KDE, GNOME, or Windows.
It features command history, and runs the command if valid (otherwise it lets the box stay there, waiting for a correction).
Enhancements:
- the window now appears centered on the screen
- important bugfix: PATH can now be used correctly ! (before it would destroy the current copy of the environment variables by strcatting the HOME variable)
- translated error messages into english.
- now the prog can handle .launch files with not as many lines as announced by the MEMOIRE setting. It replaces them with "".