[FEATURE] Build System: added SEQAN_TRAVIS_BUILD variable
[FEATURE] Build System: added SEQAN_TRAVIS_BUILD variable

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