minishowcase goes to v09b136, adding minor cosmetic fixes for some
ugly lines in the menu items, and a nice yet underdeveloped and
undocumented hack: <strong>now you can navigate the images by clicking
the left and right arrows! To go forward you can also use the
Spacebar</strong>.

The navigation behaves identical as the image arrows, so when it
arrives to the end of a thumbnail block it automatically loads the
next one.

Hope you like it. There are minor things I still have to check, and my
most important milestone is the creation of subgalleries and updating
the documentation.