Looks better in the html - see #6752. Also this converts the "ctrl-something" instances I could find to proper markup. [ci skip]
This adds a new readline command self-insert-notfirst, which is analogous to self-insert, except that it does nothing if the cursor is at the beginning. This will serve as a higher-performance implementation for stripping leading spaces on paste.
We never updated that after we changed the default. [ci skip]