changes to dbfrontend 0.0.5.8

* No more buttons, they went to a new menu.

* Remember the last project used and reload it on startup.

* The snapshot image becomes less important and smaller and goes into the bottom left corner. This was done in order to waste less space and to fit on a 800x600 screen.

* New menu sections for all project tabs. Of course, all menus are new now, but "Sections" did not exist before and the buttons in "File" and "View" did.

* Hide the DOSBox settings away by moving the splitter bar or using the "View" menu "Show / Hide DOSBox settings" to gain more space for the configuration area.

* DBFrontend becomes the smallest frontend available with the new feature "Show / Hide configuration area". Now there is also some space left on 800x600 screens: 640x480 here I come!

* Menu translated to 3 languages: English, German and French.
