Some of libxml2 bugfixes improve processing of DataStreams
Some of libxml2 bugfixes improve processing of DataStreams

See rhbz#884707, rhbz#877348.

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