The dashed line is now 1px wide and has smaller dashes. The separator
button has also smaller padding.

For LibO, that just means replacing sal/cppunit.h with sal/precppunit.hxx.

sb140: #i117698# no implementations of XIdlClassProvider remain, so code that checks for it can be removed

plus
sb140: #i117310# missing include
sb140: #i117310# support EXCEPTIONS_OFF (no UNO_QUERY_THROW)

This command (.uno:Repeat) works only in Writer and Calc. It is always
inactive (greyed out) in Basic IDE.

But there are way too many codes calling that one.  Maybe someday...

This reverts the following commits:
  + f3e275a2
  + 29a45a09 (partly)

Conflicts:

	officecfg/registry/data/org/openoffice/Office/UI/WriterCommands.xcu

When leaving the mouse over a header or footer area for 2 seconds, the
separator is shown. This feature enables adding headers and footers
easily without knowing anything about page styles.

The separators are hidden back after 2 seconds outside the header or
footer area.