Fixed issue #648 "Dependency graph: clusters are not working correctly"
Fixed issue #649 "'assert' evaluates the wrong part of the expression"
Implemented ticket #656 Added log information to the GUI exception handler
Implemented ticket #656 "Change the internal logging mechanism"
Implemented ticket #662 "Add a 90 degrees optimisation to rotation algorithms"
Fixed issue #663 "Setting y limits does not work for regular x fits"
Fixed issue #664 "Remove superfluous indents during installs"
Fixed issue #661 "Axes for 'imread'"
Doubled the calculation speed in loops by optimizing superfluous checks