CUAV: cope with camera parameter file not existing
mp_image: added zoom and drag options

zoom is now down with preservation of the mouse position. This makes
for easier zooming of objects
mp_image: fixed key events
mp_slipmap: cope with icons in packaged python zip files
mp_tile: moved resource loading into mp_icon()
build: move all code into a subdirectory

this is needed to pander to the %&%#^&@! setuptools requirements for
zip packaging.
rewrite setup.py for new layout, change to 1.1.0
fixed install on windows
mp_tile: fixed rname bug
mp_image: switched to boolean event selection
event codes may vary in forked processes
mp_image: added set_title() API

set titles on viewed images in mosaic
optparse_gui: show title based on description
add service pulldown to mp_slipmap
fall back to cv if cv2 is not available
mp_image: added auto_size option

useful for mosaic window