3.31

• add excluded_search_path_prefixes setting #1165
• add cd_cs rule #1167
• extend pyenv rule to include goenv, nodenv and rbenv #1100
• add conda rule #1138
• add python_module_error rule #1151
• fix possible changes in files outside of working directory in dirty_unzip and dirty_untar rules #1206
• various improvements and bugfixes