Try fixing travis zmq import errors.
No user interaction.
Some more of no user interaction.
Corrected apt call.
Use sudo.
Install mode deps.
How about the full path to the python binary?
Also install mock. Use the correct python version.
Cleanup. Pip should update packages and also use mirrors.
Don't use `-U` with pip. Makes M2Crypto re-install and fail.
Commented out test case which is failing since 209c5660105e3c042a39a93c3d9a4aa5a77de2df. @vlaci could you have a look please?
Show useful information from the failing test.
Remove debug printing.
Hide python's `datetime` module from `salt.modules.postgres` function scope.
Add `@todo` as the cli example so the test does not fails and it does not get forgotten.
Improve example matching.
Merge pull request #3759 from s0undt3ch/hotfix/travis-zmq-import-error

Fix travis testing.