clarify the version of pre-requisite packages

[amiltonwong]

Hi, @sjchoi86 ,

Thank you very much for releasing such a useful repos. As it's been quite a time since you first released this repos, so some conflict may occur when running this repos with current TF (0.12.1 or 1.0).

For example, when I run "semseg_basic.pynb" at the last cell, I came across this TF error

In order to run this repos, could you clarify the version of pre-requisite packages?

Tensorflow version: 0.xx?
python version: 2.7/3.4/3.5 ?
cuda version: 7.0/7.5/8.0?
cudnn version ?
anaconda: used or not?

THX!