add env plugin CleanHook test
add env plugin CleanHook test

apex/apex,DaveBlooman/apex,pilwon/apex,DaveBlooman/apex,ianrtracey/apex,pilwon/apex,apex/apex,DaveBlooman/apex,tobyjoe/apex,llun/apex,apex/apex,ianrtracey/apex,ianrtracey/apex,apex/apex,tobyjoe/apex,llun/apex,ianrtracey/apex,pilwon/apex,apex/apex,llun/apex,apex/apex,ianrtracey/apex,DaveBlooman/apex,llun/apex,llun/apex,llun/apex,tobyjoe/apex,ianrtracey/apex,DaveBlooman/apex,apex/apex,DaveBlooman/apex