Static-frame

Corrected flaw in axis 1 statistical operations with ``Frame`` constructed from mixed sized ``TypeBlocks``.

Added ``Series.loc_min``, ``Series.loc_max``, ``Series.iloc_min``, ``Series.iloc_max``.

Added ``Frame.loc_min``, ``Frame.loc_max``, ``Frame.iloc_min``, ``Frame.iloc_max``,

iter_element().apply`` now properly preserves index and column types.

Using ``Frame.from_records`` with an empty iterable or iterator will deliver a ``ErrorInitFrame``.

Matrix multiplication implemented for ``Index``, ``Series``, and ``Frame``.

Added ``Frame.from_records_items`` constructor.

Improved dtype selection in ``FrameGO`` set item and related functions.

``IndexHierarchy.from_labels`` now accepts an ``index_constructors`` argument.

``Frame.set_index_hierarchy`` now accepts an ``index_constructors`` argument.

``IndexHierarhcy.from_product() now attempts to use ``name`` of provided indicies for the ``IndexHierarchy`` name, when all names are non-None.

Added ``IndexHierarchy.dtypes`` and ``IndexHierarchy.index_types``, returning ``Series`` indexed by ``name`` when possible.