PalOOCa 0.9.0 Release

This new release mainly concentrates on the modeler but also fixes some other bugs reported by users (thanks to all who help improve this project!). The change log reads as follows:

Modeler:
- Added consolidation handling
- Added dimension selection to the element view
- Changed the connection combo box to automatically trigger the connection
- Fixed cube creation

Addin:
- Fixed write-back of cells with zero-value
- Fixed crashes on Gnome

Please keep making suggestions for improvements!