The hack description box messages were replaced by tooltips on Windows,
so there is no need for the first line in the description to refer to
the hack anymore.
3-state checkboxes were also converted to comboboxes, so remove any
references to checkbox states.
Reformat the descriptions so it looks okay on both Windows and Linux.
Could be better, but I'm out of ideas.
Also fix a few typos and missing punctuation.
Jonathan Li
55adc7e728