3.17.0

• Add CWL destBucket runtime option to deposit CWL outputs into cloud buckets
• Update boto3 and boto
• Better Error messages when docker images are unavailable
• Broader checking for docker image existence prior to launching blindly
• Incremental Python2/3 compatibility improvements
• Enable support for specifying zone in all environment variables
• Expose --force-docker-pull and --no-match-user options from cwltool
• Add mem free option to UGE
• Convert most log messages to debug level
• Update cwltool from 1.0.20180518123035 to 1.0.20180521150620
• Incremental WDL Support Improvements (docker permissions, parsing, and improved logging)
• Documentation Housekeeping and Code Cleanup

Bug Fixes

• Stop FileJobStore DEBUG messages from sneaking out once for every job
• WDL Parsing Error
• Fix docker daemon detection depending on terminal size
• Checking virtualenv
• Properly filtering AWS security groups
• Fix a crash if job is larger than all available node types
• Avoid overwriting NVMe root volumes on current-gen AWS instances
• Don't call addNodes if the delta was met by unignoring nodes
• Fix AWSJobStore updates not working if values are shrunk
• Prevent worker from checking for nonexistant file

Thank you to our contributors: @mr-c (big thanks for all of the CWL support!), @jsmedmar, @bencvdb, @tom-dyar, @joelarmstrong, @mwiens91, @jessebrennan, and @adamnovak!