Implemented ticket #727 "TAB().cols and TAB().rows shall return dimensions"
Implemented ticket #730 "Add checksums to NDAT und numere.cache"
Deleted already merged branch for tickets #699 and #729
Implemented tickets #699 and #729 "Create a logical value column" "Create a categorical column type"
Updated version for tickets #699 and #729 Improved rendering of cell values in tables
Improved an error message with more detailed information. relates to the filter function from ticket #657.
Added the filter function that allows filtering a matrix with any kernel as described in ticket #657.
Updated version for tickets #699 and #729 Enabled CTRL-C, CTRL-V and CTRL-X for the terminal
Updated version for tickets #699 and #729 Improved the handling of large tables and long strings
Updated version for tickets #699 and #729 Renamed ".categories()" with ".categorylist()" and introduced ".categorize()"