Released 3.1.0 2018-05-25

This release brings two minor API changes:

• Long-deprecated functions ldap.open() and ldap.init() are removed
• LDAPObject.compare_s() and compare_ext_s return bool instead of 0 or 1

All changes since 3.0.0:

Lib/

• Remove long deprecated functions ldap.open() and ldap.init()
• LDAPObject.compare_s() and LDAPObject.compare_ext_s() now return a bool
  instead of 1 or 0.
• Make iteration over cidict yield same values as keys()
• Fail if pyasn1 is not installed
• Fix parsing of PPolicyControl ASN.1 structure
• Use items() when appropriate in dict iteration
• Add support for tracing LDAP calls. Tracing can now be enabled with
  the env var PYTHON_LDAP_TRACE_LEVEL and redirected to a file with
  PYTHON_LDAP_TRACE_FILE.
  (This is mainly intended for debugging and internal testing; the
  configuration or output may change in future versions.)

Modules/

• Fix ref counting bug in LDAPmessage_to_python

Doc/

• Remove warning about unreleased version
• Doc: Replace Mac OS X -> macOS

Tests/

• Add tests and coverage for tracing
• Disable warnings-as-errors for Python 3.4
• Fix assertTrue to assertEqual
• Mark several test values as bytes

Lib/slapdtest/

• Fix error message for missing commands
• Make SlapdObject a context manager
• Disable SASL external when missing SASL support
• Make SlapdObject.root_dn a property
• In SlapdObject, build include directives dynamically
• Move import statements to top level

Code style:

• Add Makefile rules for automatic formatting of C and Python code
• Reformat and indent all C files
• Trim white space throughout the project

Infrastructure:

• Add py3-trace tox environment to Travis CI config
• Add new Pytest cache directory to gitignore

General:

• Update all pypi.python.org URLs to pypi.org