updated travis
updated travis

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