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* remove php gd dependencyPim van den Berg2010-06-051-0/+6
| | | | | | Image error messages were shown using PHP GD. People who haven't installed PHP GD don't understand what is going on when an image is not shown. It is replaced by a static image referring to the error log for more information.
* make rrdfiles using utf8 and spaces workJakob Haufe2010-02-161-3/+6
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* better validation of possible user input (get)Pim van den Berg2010-01-011-0/+27