[AppDB] - cleanup screenshot class

[Chris Morgan]

Move screenshot related functions into screenshot class.  Have external code 
call get_thumbnail_img() of screenshot objects they create rather than 
creating a screenshot object inside of the screenshot class static function.
Rename get_screenshot_img() to get_random_screenshot_img() so the name of the 
function matches its purpose.

Chris

-------------- next part --------------
A non-text attachment was scrubbed...
Name: screenshot_cleanup.patch
Type: text/x-diff
Size: 14524 bytes
Desc: not available
Url : http://www.winehq.org/pipermail/wine-patches/attachments/20060710/ff11204e/screenshot_cleanup.patch