Comment 20 for bug 217231

due to discussion of emf import, noticed that the import of the file TimingDiagram_ADC.emf is broken in trunk. This was working properly in Inkscape 0.48.3.1, not sure when it got broken (possibly in bzr commit 10045).
in any event, re-implemented some very limited filtering of control characters, the file now loads correctly.

committed to rev 11775.