more text description.  Some of David's array-staging.

Signed-off-by: aj rossini <blindglobe@gmail.com>
First cut of date handling and printing. not finished need to create unit tests.

Conflicts:
	src/data/dataframe.lisp
print-object: Make the columns print out in nicely formatted tables. need to rewrite build-format-string and deal with headings next
move dfcolumn to dataframe.lisp.
ensure column label keywords are upper case and rewrite translate column a bit

Conflicts:
	src/data/dataframe.lisp
cleanup of packages.

Signed-off-by: aj rossini <blindglobe@gmail.com>
ensure column label keywords are upper case and rewrite translate column a bit

Conflicts:
	src/data/dataframe.lisp

Signed-off-by: aj rossini <blindglobe@gmail.com>