nautilus-actions doc should be packaged separately

nautilus-actions is 12+ MB for about 1MB (at most) of actual payload, this seems to be because of documentation duplicated in several languages and formats (pdf, html) and some development files (.h, the gtkdoc stuff). the config tool is simple enough to use with tooltips etc so I doubt anyone ever reads or needs the bulky doc.

the doc should be separated into an optional nautilus-actions-doc package, either in one or language specific packages, etc. it would also help duplication in architecture specific packages (the doc is not).

the dev code should perhaps be in a -dev package, but splitting off the doc would be great progress already.