function renames etc

[naturallymitchell]

reviews appreciated

• base: models-setup, stores-setup
• get_validator -> document-check-model
• validate_document -> document-check-model
• add_document_to_index -> index-document
• documents -> store-documents
• get_document_path -> document-get-path
• query -> index-documents
• read_document -> document-read
• read_log -> logdocument-read
• setup_index -> index-setup
• setup_schema -> schema-setup
• split-header -> document-parse
• walk-documents -> documents-walk
• write-file -> document-write

[sh-zam]

We could change write_file to write_document
Other than that, I think the original names are good.
It would be better of we could use short hand for common ones like get_doc_path

[naturallymitchell]

I want to start each function name with what gets acted on (the 'target' of the operation).
and end with the 'act' (the verb).
so document-write instead of write-document.
please make comments and preferably changes to issue summary to finalize this plan and swiftly finish one pass