Log Message:
Changes 2.4.3:
Lib/
* Mostly corrected/updated __doc__ strings
Doc/
* Corrected rst files
* Added missing modules, functions, classes, methods, parameters etc.
  at least as auto-generated doc

Changes 2.4.2:
Logging:
* pprint.pformat() is now used when writing method/function
  arguments to the trace log
ldap.schema.subentry:
* SubSchema.__init__() now has new key-word argument check_uniqueness
  which enables checking whether OIDs are unique in the subschema subentry
* Code-cleaning: consequent use of method SubSchema.getoid() instead of
  accessing SubSchema.name2oid directly.
* SubSchema.getoid() and SubSchema.getoid() now have key-word argument
  raise_keyerror=0 and raise KeyError with appropriate description.