Add the text_post_module module, the erp5_text_post skin folder,
the TextPost property sheet, the last workflow history of all files,
and the Text Post (Module) portal types, workflows, actions, etc.
to the business template, along with the associated XML updates.

Remove erp5_page_launcher.html and erp5_page_launcher.js because
all my custom modifications were completely unnecessary, and
add officejs_chat_launcher.html to use the custom chat CSS
and jio_mappingstorage_js for future fun with jIO mapping storage.