[FIX] remove some warnings in vc2015
[FIX] remove some warnings in vc2015

bestrauc/seqan,xenigmax/seqan,xenigmax/seqan,bestrauc/seqan,hannespetur/SeqAnHTS,bestrauc/seqan,xenigmax/seqan,xenigmax/seqan,hannespetur/SeqAnHTS,bestrauc/seqan,bestrauc/seqan,bestrauc/seqan,hannespetur/SeqAnHTS,xenigmax/seqan,hannespetur/SeqAnHTS,bestrauc/seqan,hannespetur/SeqAnHTS,xenigmax/seqan,hannespetur/SeqAnHTS,xenigmax/seqan,xenigmax/seqan,hannespetur/SeqAnHTS,hannespetur/SeqAnHTS,hannespetur/SeqAnHTS,bestrauc/seqan