fix to the ubuntu version in guide
fix to the ubuntu version in guide

in teh other distributions guide it was still refering to 12.04

SynthSys/seek,SynthSys/seek,HITS-SDBV/seek,HITS-SDBV/seek,SynthSys/seek,SynthSys/seek,stuzart/seek,HITS-SDBV/seek,stuzart/seek,stuzart/seek,HITS-SDBV/seek