added an ugly option to catch the ClassNotFoundException that enables
testing of the XML functionality without having an implementation of ImgLoader
added the classes Angle, Channel and Illumination so that each of them has
an ID and name. Angle additionally has a rotationAngle and a rotationAxis[]
that can be left out in the XML.
updated the XML with timepointpattern to the new XML tags
updated the XML without pattern to the new XML tags