change version to 0.70
Merge pull request #34 from materialsvirtuallab/master

default display mode is now "less". Much improved command line tests.
minor doc updates
include templates in pip install
update to v0.71
refactor _upsert_wf to _update_wf, since this method will never insert
optimize _upsert_wf so that we don't query over a list of thousands of nodes