SciDAVis - Improvements SVN-temp

- implemented the remaining column commands

- started integrating the Column related classes
into the filter and aspect frameworks
(this will break some things temporally)

- moving column to core since Column has a lot
of interdependencies with the filter classes

- worked on the implementation of the new Column class
and related classes

- adding first draft for a new column class
(neither finished nor tested or anything)

- some reodering and improvements to the data source classes

- improved the Table integration (still a lot of stuff
broken though)

- moved the most imporant enums and all app version
related stuff into a class "SciDAVis" in global.h/.cpp
- added several table commands and Table methods
- worked a lot on integrating the new Table implementation
into the application by writing wrapper functions

Added first draft of Aspect framework.

Updated some missed parts to new names.