Use the new build env on Travis
Use the new build env on Travis

more dedicated cpus, more ram, better boot times, more capacity
zakwanhaj/rpush,kjnsn/rpush,jmnsf/rpush,rpush/rpush,chiu/rpush,zenjoy/rpush,amaierhofer/rpush,aried3r/rpush,joshuairl/rpush,mandarin6b0/rpush,krakatoa/rpush