Added 'cheroot' server adapter to list of server names, so it can be selected from the command line and by name.
Added 'cheroot' server adapter to list of server names, so it can be selected from the command line and by name.

Alos added cheroot after cherrypy in the 'auto' adapter to make it future proof.

bottlepy/bottle,defnull/bottle,defnull/bottle,oz123/bottle,oz123/bottle,bottlepy/bottle,fkazimierczak/bottle,ifduyue/bottle,fkazimierczak/bottle,ifduyue/bottle