Merge branch 'develop' into dockerize

CHANGELOG.txt

CMakeLists.txt

modules/conop/doc/aminoacid.rst

modules/conop/pymod/CMakeLists.txt

modules/conop/pymod/wrap_conop.cc

modules/conop/src/CMakeLists.txt

modules/conop/tests/CMakeLists.txt

modules/index.rst

modules/io/doc/io.rst

modules/io/doc/mmcif.rst

modules/io/pymod/wrap_io.cc

modules/io/src/CMakeLists.txt

modules/io/src/mol/CMakeLists.txt

modules/io/src/mol/mmcif_reader.cc

modules/io/src/mol/pdb_reader.cc

modules/io/src/mol/star_parser.cc

modules/io/src/mol/stereochemical_params_reader.cc

modules/io/src/mol/stereochemical_params_reader.hh

modules/io/tests/test_star_parser.cc

modules/io/tests/testfiles/broken_data.cif