Use Ubuntu Trusty at travis
Use Ubuntu Trusty at travis

Refer https://docs.travis-ci.com/user/trusty-ci-environment/

rshell/oracle-enhanced,luke2237/oracle-enhanced,luke2237/oracle-enhanced,yahonda/oracle-enhanced,rsim/oracle-enhanced,cdinger/oracle-enhanced,rshell/oracle-enhanced,rsim/oracle-enhanced,cdinger/oracle-enhanced,yahonda/oracle-enhanced