rfcdiff-1.47-bp157.1.1

- update to 1.46:
  * navigate chunks without adding the navigation to history

- Typographical fixes to the description.

- initial package (1.45)

- update to 1.47:
  * Add a --fold <column> argument, to apply line wrapping before
    comparison
  * Add normalization of the scheme of provided URLs, to avoid
    complaints for redirects from https to http
  * Add display of more error messages, and added validation and
    error messages for unexpected query parameters
  * Add stripping of query parameters from upload source urls
  * Change http:// schemes to https:// in the .pyht script file