Index Styles and such

[Ed Kleban]

Do index styles work with fields that are indexedByWords so that I can
specify a list of words to be excluded from indexing?

How much performance loss does Valentina incur for processing char fields
stored on disk as UTF-8 since it has to convert them to UTF-16 every time it
does an search or comparison?

If the string "aaaa bbbb aaaa bbbb " is indexedByWords, then presumably
there is only a single index entry for "aaaa", not two?  Thus its necessary
to parse lines found on a match to scan for multiple occurrences of the
search string?