Also, removed unnecessary reloading of the whole table data when
reference is updated.

For efficiency reasons.  Otherwise, refreshing n tables individually
would require reloading the same data cache n times.

With this change, ScDPCacheTable should never clear pointer to the
data cache instance; it should keep the same data cache instance that
it is instantiated with.

Sigh, spent one day, more or less, tracking down a weird fontconfig
problem, where all the diagnostic it offered was "unknown encoding"
when reading the fonts.conf file.

It turned out that I was being screwed by our fun two versions of the
expat_xmlparse library: One where XML_Char is char and one where it is
short. The intuitively "more normally" named libexpat_xmlparse is the
latter, but fontconfig works only with the former as it implicitly
expects XML_Char to be char.

Fix mistake in method for type OUStringBuffer

Part XXXV
Modules
stoc

1) for empty cells, not only paragraph properties, but but character properties should be emitted as well (e.g. font)
2) \sb and \sb is an attribute, not an sprm (it was ignored)
3) \sl was ~ignored due to a typo

Replace 5 lines of vertical whitespace in sdext/source/presenter/* with
a single line so that more can be seen on the screen at once.

Fixes bug 44635

On gcc-4.4.3, it fixes this error : l10ntools/source/helpex.cxx:82: error: parameter may not have variably modified type 'rtl::OString [(((long unsigned int)(((long int)i) + -0x00000000000000001)) + 1)]'

and there's a unused duplicate header here too which can go