locking and saving#343

Merged

teharrison merged 2 commits intoMG-RAST:masterfrom

teharrison:master

Apr 16, 2018

Commits on Apr 12, 2018

only save node state at end of update, add node lock for life of update, use global lock object with timeout and cleanup
teharrison
committed

Commits on Apr 13, 2018

fix lock init, add more helpful error messages
teharrison
committed