Gitools 2.2.2
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* Preliminary mutex analysis
* Bugfix: Excel import
* Bugfix: integer clustering
* Bugfix: Numeric header sorting
* Non-0 event function for linear numeric (color) scale
* Numeric Header value formatter


Gitools 2.2.1
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* New external commands: mutex-sort, close (and save)
* Mutex bugfixes
* Overlap wizard bugfixes
* Exception bug fixes

Gitools 2.2.0
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* Mutual exclusion plugin (new)
* SVG image export (new)
* Hierarchical cluster heatmap header with contextual menu (new)
* View enrichment data via contextual menu in results (new)
* View group comparison data via contextual menu in results (new)
* Selection statistics (new)
* Data events (new)
* Import string values: importing strings to categorical values (new)
* Layer groups (new)
* Recent files (new)
* .mtabix data file compression (new)
* Parellization: use multiple cores for many tasks
* Many performance improvements
* UI improvements


Gitools 2.1.0
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* Flat text file import (new)
* Data integration: load new data layer on heatmap (new)
* Clustering improvements
    * Hierarchical clustering color coded header (new)
* Group comparison:
    * 2+ groups may be compared (new)
    * Improved wizard
* Bookmarks (new)
* access to Gitools data-sets from welcome-tab (new)
* UI improvements

Gitools 2.0.0
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* .heatmap.zip format for saving and laoding heatmaps.
* Contextual menus. Header and details reveal menus upon right click
* Show values in heatmap (new)
* new UI


before Gitools 2.0.0
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* Correlation analysis
* Enrichment analysis (binomial, z-score, fisher)
* Overlapping analysis
* Oncodrive analysis
