Added array-operations as a library dependency.
Rewrote ascii output, now it works.

The library still needs to be cleaned up.
Cosmetics, the library now loads.

- renamed latex-table to table (as it is more general now)
- commented out unused code
- fixed references to renamed functions
Added nickname.
Made write- operations generic, defined print-object method, minor fixes.
Rearranging code, adding docstrings.
Added docstrings, changed a few function names, and the representation of widths.
Fixed inconsistency about middle rule.
Removed dependence on array-operations.

The function that prints the row is given the whole cell and a
row-index.
Placed table construction functions at the beginning.
Added docstrings.
Rearranged parts, cleaned up labeled-vertical.
Exported *ascii-column-separator*.
Made format-content accept symbols and table accept arrays.
Added comment about error to be fixed.
Started some examples.
Removed (unused) formatting.lisp.
Re-enabled dependence on array operations, leads to cleaner code.

Removed duplicate code.
Fixed formatting of NILs.  Re-added print-object method.
Added LaTeX output for rules.