Initial revision.
Get selector to work properly, add unit tests.
Add query() method using panda's experimental query mechanism.
Add method to return MultiIndex corresponding to selector.
Simplify.
Add support for specifying offset in DataFrame row when selecting data.
Enable specification of row subinterval over which to apply selector.
Tweak.
Add get_tuples method.
Add support for string and integer lists, add index construction method for ambiguous selectors.
Tweak.
Add initial version that uses XPATH-like selector.
Add more docstrings, enable specification of level names in get_index, make_index methods.
Add count_tokens method.
Add level adding mechanism, make getitem/setitem methods work.
Add support for populating class instance from CSV file.
Merge pandas_xpath_like_keys into repo.
Rename files, tweak data columns.
Add unit test.
More updates to docstrings.