Explicit paths for modules

[smoe]

On https://docs.python.org/3/tutorial/modules.html it is said that relative paths would be possible. Now it is a bit Java-like with explicit full paths. I think I like that better - at least it was easier.

This was done in a semi-automated manner and I may have missed a few. Will address packaging of the mirtop module now and then continue.

[lpantano]

Thanks for doing this. I see travis is failing because seqcluster.seqcluster.libs... is not good for python 2.7, is this working on python 3?

[smoe]

Er, no. This is just a stupid hickup of a script I had written and I had thought to have corrected them all. I'll check again and update. Sorry.

[smoe]

Apparently I had not checked in the test directory. Fixed.

[lpantano]

Thanks!