projectBrowser is now of type ProjectView
Extended add/remove functionality
Reader classes return DataItem. Added static function to return dictionary containing instances of all implemented readers.
Extended documentation
OperationQueue: sequence of calculations on data
Added __repr__ for DataItem
Introduced tree traversal and __getitem__ functionality, and a dict to keep track of ItemContainer ids in the tree
Added offset to bandpassfilter parameters, formatting is PEP9 conform
Unit test of ProjectModel uses crawl now
Moved ProjectView to window.py
Introduced show functionality in mainWindow, changed imageView to PyMca.PlotWindow