rename msm.io to avoid shadowing python package io

[franknoe]

(moved from pyEMMA)
since this breaks the api, we should do this in 1.3 and deprecate it somehow (I currently do not know what is the best practice to deprecate a package name).

But actually the issue of shadowing is not a big deal, since it only affects imports one level above "io". So in principle we can not import the builtin.io at level of the msm package. In my opinion this only creates work and does not solve any real problem.

[marscher]

But actually the issue of shadowing is not a big deal, since it only
affects imports one level above "io". So in principle we can not import
the builtin.io at level of the msm package. In my opinion this only
creates work and does not solve any real problem.
Agreed. We should leave it as it is by now.

[franknoe]

ok, then I close this.