remove samples
remove old tests
remove catalog
remove old design docs
update requirements
remove bin directory
remove table object
add missing clean metadata creation to sql test
bump version
fully explicit import for into
unqualified nosetests --with-doctest works
add numpy to conda build requirements
Merge pull request #345 from mrocklin/del

Delete old stuff
compute: add date/datetime to base datatypes
expr: add &, | syntax to columns
csv: unpack types during discovery
coerce is transparent to debugging

generator expressions and cytoolz functions are sometimes opaque
csv: read bigger sample to determine dialect, header
remove explicit 'rt' mode from open

This breaks Python3 gzip but fixes Python3 unicode.

I'm not sure how to satisfy both generally at once