PDC core version 789 - minor update Open Office document support

[Mike Sanders]

Plagiarism Detector core version 749 minor update.

Features added:

+ Added support for *.odt files (Open Office Document). Now you can run checks for Plagiarism for Open Office documents!
The support for Open Office presentations is coming soon.
We are investigating to add support for TEX\LaTEX formats.

+ "Kittens Screen" added.
+ Several bugs removed:
- on user switch
- on hibernate
- on shutdown
+ session memory is now working for RMB Check.
+ Many small fixes and improvements.
--
Plagiarism Detector is a bit better software now :-)