- plotting now works from the main as well as the context menu
- I have decided to postpone the conversion from the string based
column lists to Column* based lists as this would be very
much work. It's questionable whether this makes sense to be done
before writing the new plotting engine anyway. For this reason
now Table::text() returns the the cell text given by the
model. This works well for numeric columns and probably text
columns as well. Have not tested date-time columns yet.
- reorganized the context menus
- added the necessary actions from the old Table menu to the new
one and removed the old one.
- disabled all masking related code as I don't plan to implement
masking support in 0.2.x already
- fixed the title bar menu for tables
