[PUSHED: 3-6] Cherry-pick request: aa4b8a8164f01a120ba9bfb2e86b1ed33cc1d69c

[David Tardon]

On Tue, Aug 14, 2012 at 03:06:58PM +0300, Tor Lillqvist wrote:
> Makes the MathML filter less prone to think any random XML file is for
> it. Some people want to open XML files in Writer (through the ASCII
> filter), yes, weird, which worked in 3.3. Please cherry-pick to the
> 3-6 branch. I was not able to do this request through gerrit, sorry,
> need larger cluebat.

Looks good.

D.