Version 0.2

This release should be usable for anyone interested in stereo algorithms and camera calibration. All functionality is there. Version 0.2 includes the following improvements over version 0.1:

* Fixed up lots of ugly code
* Realtime preview of TopHat parameters
* Nr of images in queue info field
* Nr of images correctly calibrated not always correct, fixed
* Fixed a bug where calibration parameters where not converted to float
* A dialog with modification and viewing of calibration parameters
* More correct info in INSTALL file