Courtesy Alexander Wilms/myself

the is a prep work to migrate IN/OUTPATH out of set_soenv.in

Part XXIV
Modules
lotuswordpro

Part XXIII
Modules
linguistic

Part XXI
Modules
i18npool, idl, idlc, io, javaunohelper, jvmaccess

Part XVIII
module
form

data*.xml contains the list of drawings which can be imported
instead. These are easier to import now that we support better
smartart.

Part XX
Module
framework

Instead of showing both the header and footer controls, show only the
footer-related if in footer, or header-related if in header.

- When the mouse pointer enters or leaves the headers / footers, show or hide
  the header / footer control immediately.  Waiting for that to appear is
  annoying; and similarly for disappearing - one usually ended up clicking the
  header / footer area to speed that up, and had a feeling of misbehaving.

- Few related re-paint improvements

since already corrected in an other way.
this reverts commit 9cc02548.

This add the checkbox hidden pages to the PDF export general tab
and if checked, export also to PDF the hidden slides