fix travis status png
fix travis status png

Quantisan/jblas,mikiobraun/jblas,Quantisan/jblas,lipiji/jblas,linux-on-ibm-z/jblas,Quantisan/jblas,mikiobraun/jblas,linux-on-ibm-z/jblas,lipiji/jblas,mpoussevin/jblas,lipiji/jblas,mikiobraun/jblas,Quantisan/jblas,mikiobraun/jblas,linux-on-ibm-z/jblas,mpoussevin/jblas,mpoussevin/jblas