cannot have T3 bindata files with type complex128 - only float32 or float64

I just put the nighlies builds to work in the new ci. I had to patch a little bit the standard snnipet to make it work. Now you can do integrated tests in the components that everyone is refactoring (bob.db., bob.bio.).

Here is the issue :-( I'm having problems to test bob.io.base (https://gitlab.idiap.ch/bob/bob.nightlies/builds/8678#down-build-trace). I faced this problem before, but I cannot remember (and track) the solution. For some reason, the std::runtime_error exception is not being catched by the nose.tools.assert_raises.

@bob so everybody can see