Travis CI: Wait 30 minutes before kill if no output.
Travis CI: Wait 30 minutes before kill if no output.

Travis CI will kill our test if no output in 10 minute. It happens when
make check is running with no messages.

https://docs.travis-ci.com/user/common-build-problems/#Build-times-out-because-no-output-was-received

Signed-off-by: Gris Ge <e24f3acbe39bf94f92e8af3c48f8852106ad5ad7@redhat.com>

tasleson/libstoragemgmt,libstorage/libstoragemgmt,tasleson/libstoragemgmt,jumitche/libstoragemgmt,tasleson/libstoragemgmt,jumitche/libstoragemgmt,tasleson/libstoragemgmt,libstorage/libstoragemgmt,libstorage/libstoragemgmt,libstorage/libstoragemgmt,jumitche/libstoragemgmt,jumitche/libstoragemgmt,cathay4t/libstoragemgmt,cathay4t/libstoragemgmt,cathay4t/libstoragemgmt,libstorage/libstoragemgmt,jumitche/libstoragemgmt,tasleson/libstoragemgmt,cathay4t/libstoragemgmt,cathay4t/libstoragemgmt