Issue #82: Added functionality on the UI layer
Issue #83: Quottaion of selection enabled.
Issue #82: Bold and italics tooltips corrected
Issue #83: Mass quotation now causes the grid to refresh
Issue #83: Menu item for cell quotation added to main menu.
Example macro for in cell equations added
Contour plots added to chart_dialog
Filled contours added to chart_dialog
Pie chart rotation angle added to chart_dialog
Sankey diagrams added to chart_dialog
exception_handeling.py renamed
Issue #61, Issue #75: Added an execution timeout for non-elementary eval operations.
This fixes many freeze-up scenarios. Timeout can be set in the preferences dialog
KeyError when removing header check in csv dialog fixed
Issue #62: Fix for header line: Correctly converted to empty string if error on parsing.
Issue #62: Csv import now yields "", where parsing yields an Error
File load and sve operations are now more robust
Status bar update is now written directly when not pasting to force update
Pyspread is now more robust against wrong .pyspreadrc files i.e. it no longer crashes on startup
Merge branch 'master' of github.com:manns/pyspread
Pyspread version switched to 0.2.6