Screenshot viewer!
Merge branch 'master' into terencehill/screenshot_viewer
UNIX eols, please!
Show title on top of the screenshot and add support for left/right keys to load  previous/next screenshot.
Better and correct filtering, now really only JPG files are shown
NOTE: this is true only if the engine is patched with my bugfix on match_pattern

Next step is to show TGAs too and one day maybe PNGs too.
PNGs for now are off-limits as _the engine crashes_ opening them!
JPG, TGA and PNG are now supported. Also images in subdirs at the first level can be seen.

Yes, PNG's day has come... :D
I've found out that PNGs produced by the engine are read normally (no crash!), unlike PNGs generated by external apps (though really common apps, such as Gimp and Paint for WinXP).
Add a screenshot preview below the screenshot list
Make available listbox keys to viewer dialog
Do not display the preview if there isn't any screenshot in the list
Also clean something up
Add a refresh button
More appropriated color for the viewer dialog
Add a class to handle screenshots images
This allowed me to
- fix title not properly centered
- simply don't draw the image instead of drawing gfx/transparent
- fade out the title after 3 seconds
Define the color of the viewer
And do a small cleanup on dialog_multiplayer_screenshot.c
Call previewScreenshot only on selection change (not at every frame...)
Also add 2 checks
Filter the list after 0.5 seconds the filter string has been changed
CRLF XIV.
Merge remote branch 'remotes/origin/terencehill/screenshot_viewer' into terencehill/screenshot_viewer
Improve a lot list browsing with the mouse not allowing screenshots previews to be loaded immediately while scrolling the list.
Merge branch 'master' into terencehill/screenshot_viewer
Slide show in the viewer
Fix minor issues with mouse wheel up/down keys