this is a conservative add from more_ek_tests_one branch, not sure why travis is not liking ek kernel tests, so I am going to iteratively add tests to merge in things that don't break.
more additions, noticed missing required call in test_ekaclc
so the errors on travis appeared to have only been in python2, I think I have updated ekffld to be more correct. ekaclc however is now a problem.
added back more tests that should still be stable.
for whatever reason ekfind in python2 is not returning the correct value, this update may fix something.
make ekfind test more generic, no validating return.
merged back in other supposedly stable tests
Merge pull request #62 from Apollo117/ek_conserv_add

this is a conservative add from more_ek_tests_one branch, not sure why ekaclc fails or issues with ekfind consistency.