o Use the lexicon's pipeline (e.g., case flattening, stop word removal, etc.).

Removed unmaintained build scripts for full Windows installers and ``configure / make`` type builds.

LP #142430: Avoid using the contexts title_or_id method in the standard_error_message. For a restricted context, this could otherwise lead to a Forbidden error and a subsequent "Also, an error occurred while attempting to render the standard error message."