Followup to 791f2768.

Seeing 791f2768 I've changed my mind,
some embedded \0 can be actually well hidden:
struct foo { const char txt[3]; };
const foos[] = { { "a" }, { "bb" }};
If somebody wants an embedded \0 in a string literal, they need to
say it explicitly by specifying the size.

This saves 1% of string allocation / destruction on startup.

Based on a patch from Arnaud Versini
(http://lists.freedesktop.org/archives/libreoffice/2012-April/029240.html)

Avoid ref/unref pair in makeStringAndClear, hook into the
stringbuffer-like 'String' class to expose it's conversion to
immutable strings, and fixup misc. missing instrumentation.

If we have a postponed page break and it's sent to dmapper during a new
inner group, we'll still have the page break request after the parser
state is popped, leading to duplicated page breaks. Instead of the
earlier workaround, just send the proper token to the domain mapper, and
it'll handle it properly.

Currently plays the embedded audio files.
The image for the audio file seems to be
rendered bad, currently.

Especially as it is obvious the grow is unbounded .-)

They should not need any actual UI anyway, and most of them already
pass the option manually.
http://lists.freedesktop.org/archives/libreoffice/2012-March/029109.html