Hi,
a couple of suggestions/musings if i may (not really a support request as such)
a) in get_article_slide() you have the following:
$outputSlide .= "<p>".$excerpt."</p>"."\n";which is fine when using excerpts but not when using the_content as there may be - for example - a ul/ol list in there which isnt allowed in p tags and subsequently messes up the layout.
might be better to have a div with a class instead perhaps ?
b)would be nice to not only choose from post and/or pages but also from custom post types...
c) there's also a php notice "Undefined index: prlx_slider_autoplay in..." when not having autoplay enabled
just things i noticed. thought i might post it . apart from that i really like it