Bugfixes

• #5998: WhitespaceTokenizer does not remove vowel signs in Hindi anymore.
• #6031: Previously, specifying a lock store in the endpoint configuration with a type other than redis or in_memory
  would lead to an AttributeError: 'str' object has no attribute 'type'. This bug is fixed now.
• #6032: Fix Interpreter parsed an intent ... warning when using the /model/parse
  endpoint with an NLU-only model.
• #6042: Convert entity values coming from any entity extractor to string during evaluation to avoid mismatches due to
  different types.
• #6078: The assistant will respond through the webex channel to any user (room) communicating to it. Before the bot responded only to a fixed roomId set in the credentials.yml config file.