Instead of six separate images for the left end, right end, and tiled
center portion of the full and empty progress bars, just use two
images: a full bar and an empty bar. Draw the left side of the full
bar and the right side of the empty one, moving the boundary rightward
to "fill" the bar. This makes recovery trivially smaller, and allows
fancier images to be used as progress bars.
Support paletted PNG images as resources.
gcc 4.4 complains about some of the recovery ui functions not being
declared. To include the header, we have to fix the 'volatile'
declaration (otherwise there's a compiler error).
Move the dream-specific images to vendor/htc/dream, make the default
images a generic phone.