Exhibit - The Etk Image Viewer

Exhibit is an image viewer that uses Etk as its toolkit. Exhibit supports
image previews for image types supported by Evas and allows for
directory changing using a point and click interface or a text input box with
tab autocompletion support. 

Common operations include:

- rotation / flipping
- sharpen / blur
- saving
- resizing (needs implementation)
- zooming in and out (needs implementation)
- drag and drop (needs implementation)
- image sorting (needs implementation)
