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* Assertions throw WExceptions if WASSERT_AS_CASSERT is not defined.
* Assertions output an error message to std::cerr and then abort() the process if WASSERT_AS_CASSERT is defined.
* The second macro parameter is an optional message. Setting this parameter to "" ignores the message.

[ADD #89] Added more information acquirable via the WEEG2 related classes: file name, sampling rate and channel unit

quad points now. remove the branch that made not used quads in cases where there
were no textures

[CHANGE #89] The EEG view module now uses the new WEEG2 instead of the WEEG (thus the module now can only use CNT files)

Added tag Last version where the EEG view module uses the old non-paging WEEG class and can read ASC, EDF and CNT files for changeset 246ab5f31a69

[CHANGE] the tab with the roi widget will appear when inserting a roi, cleaned up some code duplications

[CHANGE] setting the inital bounding box to the size of our standard test datasets, this has to be corrected for any size

[FIX #224] Now the clustering does not dying when there is already a file (nothing is saved) or when there is no permission (should catch an exception)

[FIX #270] Now the voxelizer accepts values for cluster voxels above 1 and renders them in a non transparent way.

also works

[ADD #89] Added electrode positions to the WEEGChannelInfo. It get's the positions from a new WPositionsLibrary class which is constructed by a WReaderELC. This reader supports more ELC-files than the old method.
[DOC] Corrected wrong spelling of "electrode" in the WMEEGView module.

Used the new class in teo modules

We need to link the marked textures with the marked data modules in the
future