Added basic support for `oval collect`, fixed docs
Added basic support for `oval collect`, fixed docs

jan-cerny/openscap,mpreisler/openscap,openprivacy/openscap,OpenSCAP/openscap,postfix/openscap,postfix/openscap,redhatrises/openscap,openprivacy/openscap,openprivacy/openscap,ybznek/openscap,redhatrises/openscap,redhatrises/openscap,Hexadorsimal/openscap,redhatrises/openscap,mpreisler/openscap,postfix/openscap,ybznek/openscap,postfix/openscap,Hexadorsimal/openscap,mpreisler/openscap,jan-cerny/openscap,jan-cerny/openscap,jan-cerny/openscap,jan-cerny/openscap,openprivacy/openscap,postfix/openscap,Hexadorsimal/openscap,postfix/openscap,mpreisler/openscap,redhatrises/openscap,Hexadorsimal/openscap,ybznek/openscap,mpreisler/openscap,OpenSCAP/openscap,ybznek/openscap,ybznek/openscap,redhatrises/openscap,OpenSCAP/openscap,jan-cerny/openscap,Hexadorsimal/openscap,openprivacy/openscap,OpenSCAP/openscap,mpreisler/openscap,OpenSCAP/openscap,OpenSCAP/openscap,ybznek/openscap,Hexadorsimal/openscap,openprivacy/openscap