Merge pull request #39 from satra/enh/satra_dev_env

Enh/satra dev env
change freesurfer version from 5.1.0 to 5.3.0
Merge pull request #41 from zhenghanQ/master

Updated freesurfer version in CASL environment
updated satra dev environment
fix: allow for id_rsa.pub
Merge remote-tracking branch 'upstream/master'

* upstream/master:
  fix: allow for id_rsa.pub
enh: updated to anaconda based environment