Articles are now saved, as are plural personal pronouns.

Articles are now saved, as are plural personal pronouns.

The personal pronouns were victim of my KEduVocWordFlag change, but the articles were victim of an API mixup: KEduVocIdentifier.articles() returned by value,
and kvtml2reader was modifying the return value. Returning by reference solves the problem.

Additionally I added some code to hopefully catch the null-d-pointer bug in KEduVocWordType.

svn path=/trunk/KDE/kdeedu/libkdeedu/; revision=847463