[FIX] updated clang in Travis
[FIX] updated clang in Travis

hannespetur/SeqAnHTS,ktrappe/seqan,PF2-pasteur-fr/seqan,budach/seqan,bayolau/seqan,h-2/seqan,xp3i4/seqan,bestrauc/seqan,limeng12/seqan,JohnReid/seqan,h-2/seqan,catkira/seqan,bestrauc/seqan,ktrappe/seqan,xp3i4/seqan,xenigmax/seqan,limeng12/seqan,PF2-pasteur-fr/seqan,PF2-pasteur-fr/seqan,xp3i4/seqan,h-2/seqan,xp3i4/seqan,xp3i4/seqan,hannespetur/SeqAnHTS,limeng12/seqan,JohnReid/seqan,catkira/seqan,xp3i4/seqan,budach/seqan,xenigmax/seqan,h-2/seqan,bestrauc/seqan,catkira/seqan,PF2-pasteur-fr/seqan,bayolau/seqan,limeng12/seqan,bayolau/seqan,bayolau/seqan,JohnReid/seqan,budach/seqan,PF2-pasteur-fr/seqan,h-2/seqan,JohnReid/seqan,xp3i4/seqan,catkira/seqan,PF2-pasteur-fr/seqan,JohnReid/seqan,bayolau/seqan,hannespetur/SeqAnHTS,hannespetur/SeqAnHTS,ktrappe/seqan,bestrauc/seqan,ktrappe/seqan,hannespetur/SeqAnHTS,ktrappe/seqan,limeng12/seqan,bestrauc/seqan,xp3i4/seqan,limeng12/seqan,catkira/seqan,xenigmax/seqan,h-2/seqan,JohnReid/seqan,budach/seqan,PF2-pasteur-fr/seqan,bayolau/seqan,bestrauc/seqan,xenigmax/seqan,hannespetur/SeqAnHTS,ktrappe/seqan,catkira/seqan,xenigmax/seqan,limeng12/seqan,ktrappe/seqan,xenigmax/seqan,bestrauc/seqan,ktrappe/seqan,budach/seqan,catkira/seqan,h-2/seqan,limeng12/seqan,h-2/seqan,bestrauc/seqan,PF2-pasteur-fr/seqan,budach/seqan,xenigmax/seqan,PF2-pasteur-fr/seqan,JohnReid/seqan,catkira/seqan,budach/seqan,xp3i4/seqan,limeng12/seqan,JohnReid/seqan,catkira/seqan,budach/seqan,hannespetur/SeqAnHTS,JohnReid/seqan,xenigmax/seqan,bayolau/seqan,hannespetur/SeqAnHTS,h-2/seqan,bayolau/seqan,budach/seqan,bayolau/seqan,hannespetur/SeqAnHTS,ktrappe/seqan