updated .travis.yml
updated .travis.yml

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