Change uses of {to,from}Ascii to {to,from}Latin1
Change uses of {to,from}Ascii to {to,from}Latin1

This operation should be a no-op anyway, since at this point in time,
the fromAscii and toAscii functions simply call their fromLatin1 and
toLatin1 counterparts.

Task-number: QTBUG-21872
Change-Id: I94117ba5452fc75684d1a576a12c294fd4c60a91
Reviewed-by: Robin Burchell <41fa8c01b8373871178bcfb6b86ab6472317e8dc@viroteck.net>

kobolabs/qtgraphicaleffects