Also cleanup space/tabs to use only 4 spaces everywhere.

Need to use LIBXML_CFLAGS, that's what it's for.

Fixes compilation for non-desktop OSes (iOS and Android), for which we
haven't built and delivered l10ntools.

Avoid ambiguous Locale type by specifying full path to sun::star... ; the other definition is from ICU.

The reason I delete it is because this code is not used yet. I still keep working in the feature branch, so when i'll finish there i'll merge it into master. It doesn't make sense to have it in master for now

This cleans up a lot of lifecycle nasties and cleans up some serious
cut/paste code duplication issues at the same time. Cleanup the
naming of ColorTable -> ColorList to match the impl. too

Page break changes (no impact on column breaks):
  + Create a MenuButton control for the page break
  + Moved the line to a SwDashedLine

still missing:
 * change the more button to something more modern
 * change the position of the range options to the place below the more
 button
 * insert/paste button is missing
 * last inserted item should be selected by default
additional future improvements:
 * filters
 * search bar

Similarly to the layout debug support. F12 -> layout, Shift+F12 -> nodes.

For debugging purposes, mainly. Fix also some casts that worked only
with SwModify being the first base (there seems to be no real
requirement for it being first).