Release v1.1.1

Changelog between v1.1.0 and v1.1.1

 README.rst                             |   2 +-
 lbh15/__init__.py                      |   4 ++--
 lbh15/_lbh15.py                        | 124 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++---------------------------------------------------------------
 lbh15/properties/bismuth_properties.py |   2 +-
 lbh15/properties/interface.py          |  52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 lbh15/properties/lbe_properties.py     |   2 +-
 lbh15/properties/lead_properties.py    |   2 +-
 setup.py                               |  48 ++++++++++++++++++++++++++++++++++++++----------
 tests/properties_bounds.json           |   6 +++---
 9 files changed, 160 insertions(+), 82 deletions(-)