Merge branch 'hotfix-1.3.1'

CHANGELOG.txt

CMakeLists.txt

modules/base/src/boost_filesystem_helper.hh

modules/mol/base/pymod/export_editors.cc

modules/mol/base/pymod/export_entity_view.cc

modules/mol/base/src/editor_base.cc

modules/mol/base/src/editor_base.hh

modules/seq/base/pymod/export_sequence.cc

tools/molck/main.cc