expand_tabs, on the object being wrapped.

(Reported by Drew Perttula.)

document dedent() function.

Further clarify the English-centricity of fix_sentence_endings.

classdesc -- just use "..." with prose explaining the correspondence
between keyword args and instance attributes.

Document 'width' along with the other instance attributes.

Describe default values consistently.

Typo fixes.

Change the markup to be more like the rest of the documentation.