Release 6.7.0

Fixes

• Removed requirement of {type} part in indices.put_mapping, see new API specification here
• Added seq_no_primary_term parameter in bulk endpoint #884
• Added include_type_name, if_primary_term, if_seq_no in delete endpoint #884
• Added include_type_name in get, index, indices.create, indices.field.get, indices.get, indices.mapping.get, indices.mapping.getfield, indices.mapping.put, indices.rollover, indices.template.get, indices.template.put endpoints #884
• Added seq_no_primary_term in search endpoint #884
• Added if_primary_term', 'if_seq_noin update endpoint #884

Testing

• Fix tests for PHP 7 with ES 6.7 [5401479

Docs

• [DOCS] Fix doc links in README [5a1782d]