Add date, time, datetime, and units dtypes
Clean up overview.rst, add mention of datetime types
Merge pull request #38 from mwiebe/datetime_parse

Add date, time, datetime, and units dtypes
Record.__eq__ respects order
Merge pull request #40 from mrocklin/record-eq

Record.__eq__ respects order
replace blaze references to datashape in validate
ignore doctest exceptions
util docstrings, also has function
factor out if-else tree to dict
to/from_ctypes docstrings
pull out tables to top-level
matches_typeset docstring
promote_dtypes docstring
subarray doctest
DataShape support multiplication operator
add more syntax for units
dshape support list, tuple
compute reverse dictionary at import time
basestring -> strtypes for py3
add fast check to typesets.matches_typeset