TODO: put aside and regenerate autotools during build.
    Closes: bug#702613. Thanks to Stefano Rivera.
TODO: Fix update copyrights and licensing.
TODO: Check need for registering/refreshing icons cache in postinst.
TODO: Check if PNGs can be autogenerated from SVG.
TODO: Add new binary package calf-doc, depending on separately packaged
    jquery and thickbox.
TODO: Maybe add new binary package calf-rack, recommending ladish (and
    stop suggesting ladish for calf-plugins).
