updated travis.yml
updated travis.yml

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