MFH: r369207

Add upstream patches for CVE-2014-6055 (more vulnerabilities in libvncserver).

Don't worry, more recent krfb versions will stop bundling libvncserver.

Security: fb25333d-442f-11e4-98f3-5453ed2e2b49

Approved by: portmgr (erwin), ports-secteam (rea)