Update opencv required version to compile correctly in ubuntu 14.04
Update opencv required version to compile correctly in ubuntu 14.04

Change-Id: I0694c3b98997a25e0d315c257dff2358bd8c5dd1

KurentoLegacy/gst-kurento-plugins,Kurento/kms-core,KurentoLegacy/gst-kurento-plugins,KurentoLegacy/gst-kurento-plugins,Kurento/kms-core,KurentoLegacy/gst-kurento-plugins,Kurento/kms-core,ESTOS/kms-core,ESTOS/kms-core,TribeMedia/kms-core,TribeMedia/kms-core,shelsonjava/kms-core,ESTOS/kms-core,shelsonjava/kms-core,TribeMedia/kms-core,shelsonjava/kms-core,shelsonjava/kms-core,Kurento/kms-core,TribeMedia/kms-core,ESTOS/kms-core