doclib: Introduce an intermediate doxygen-compatible image map format
Update all image maps to the new format

debian: Add missing call to build arch packages
debian: Exclude '_template' dir from the source package
doclib: Fix 'dot' script to work with more doxygen versions

doclib: Find optimal graph rotation for large dot graphs
doclib: Break long pathnames in dot graphs
doclib: Use new DOT_GRAPH_MAX_NODES parameter in Doxyfile.global
doclib: Break lines in (textual) class inheritance lists