updated travis
updated travis

jhonatanoliveira/pgmpy,vivek425ster/pgmpy,pratyakshs/pgmpy,vivek425ster/pgmpy,abinashpanda/pgmpy,yashu-seth/pgmpy,abinashpanda/pgmpy,kris-singh/pgmpy,liquidmetal/pgmpy,sandeepkrjha/pgmpy,pratyakshs/pgmpy,kris-singh/pgmpy,pgmpy/pgmpy,liquidmetal/pgmpy,pgmpy/pgmpy,palashahuja/pgmpy,jhonatanoliveira/pgmpy,khalibartan/pgmpy,palashahuja/pgmpy,anaviltripathi/pgmpy,kislayabhi/pgmpy,kislayabhi/pgmpy,ankurankan/pgmpy,sandeepkrjha/pgmpy,yashu-seth/pgmpy,anaviltripathi/pgmpy,khalibartan/pgmpy,ankurankan/pgmpy