Fix so that preprocessing stage completes successfully for assembled jobs.
Merge pull request #245 from jaredbischof/master

Fix so that preprocessing stage completes successfully for assembled job...
Jobs that are being split do not require the totalwork parameter and make the decision making on job splitting confusing.
Merge pull request #246 from jaredbischof/master

Jobs that are being split do not require the totalwork parameter and mak...
Merge branch 'master' of github.com:MG-RAST/pipeline
update url
update validate metadata to use mg-rast API and not bioportal API to retrieve ontology lists