Add several PageFinder optimizations and add support for @field.subfield grouping in selectors (database selectors only at present). This allows you to specify the same field twice in a selector and specify that it must match the same exact page reference. For instance, "categories.active=1, categories.featured=1" will match pages that at least one one category that's active=1 and at least one category that's featured=1. Whereas, "@categories.active=1, @categories.featured=1" will match pages that have at least one category that is BOTH featured AND active. This was added per Apeisa/Avoine's request.