Source conda 4.4.4 shell files
Source conda 4.4.4 shell files

Conda 4.4.4 (https://github.com/conda/conda/releases/tag/4.4.0)
made some changes on how to set up conda in the shell.
This commit addresses these.

This fixes some of the discussion in #178.

pyenv/pyenv-virtualenv,yyuu/pyenv-virtualenv