GAI bgswitcher

This release has been converted to support/require Gai 0.5.3. There is a preferences window redesign to incorporate option menus. The file selector has been changed to just a text box due to UTF-8 errors. A pause function has been added (by popular demand). There is a new appearance layout with previous, pause/play, and next buttons. 3 button themes are available.

Several additional thumbnail transitions are now
available. The source files have been cleaned. A
GNOME rotation issue was resolved. CPU usage was
reduced. Two layout formats are available. Images
with ratios other than 4x3 are now handled
correctly.

Proper tumbnail scaling is now done. Old code was
cleaned out. A fancy thumbnail transition
animation was added, which fades from one
thumbnail to the next. The user can now choose
between rotating images sequentially or randomly.
Scroll handling was improved. A virtually
unlimited number of images is allowed. A bug in
the file selection process where old images
persisted was fixed. Auto-tiling and maintenance
of image ratio to backgrounds was added. The
original applet frame was removed. The file
selector is now used to pick a directory instead
of merely using a text entry.

This release adds an auto-rotate feature, additional setroot support, and a tooltip. Changing the rotation frequency while running no longer requires an app restart to have the setting take effect. Function calling has been changed to avoid recursive loops.

The rotation min/max/increment has changed (1min/24hr/1min). Max background pics has increased to 10,000. The counter is now initialized. A memory leak in get_image_array() has been fixed. A bogus tar.gz file has been removed from the distribution. PNG, JPEG, and GIF files are accepted. ImageMagick's convert dependancy has been removed. A new random thumbnail is shown once you switch backgrounds instead of waiting the remaining time interval. Deeper directories are supported. A default app image is drawn if the user specifies an invalid or empty directory.