Allow images to be unloaded to disk or compressed in memory. Provide thumbnails in all tree windows (hotlist, history). Optimise the application initialisation times. Part 1 of 2.
svn path=/import/netsurf/; revision=1761
Re-implementation of hotlist via general tree code. Animations can be stopped once more. Purged a few xcalloc() calls.
svn path=/import/netsurf/; revision=1394
GIF opacity test is now applied to all GIFs. Background colour redraw is optimised out for opaque, repeating images.
svn path=/import/netsurf/; revision=1305
Moved GIF file reading to image/, optimisation of plotting for GIFs, JNGs, PNGs and JPEGs, initial work for toolbar customisation. Possibly some other things too.
svn path=/import/netsurf/; revision=1301