Renaming `types` to `typemap`...
Renaming `types` to `typemap`...

...and changing the return value of the `types` property
to be an array of the atom types instead of a dictionary
mapping, which is now returned by the new `typemap`
attribute. This change makes the return value of `types`
consistent with the attributes returned by other
Atoms classes.

androomerrill/scikit-nano,scikit-nano/scikit-nano,androomerrill/scikit-nano,scikit-nano/scikit-nano