• Fix Allow nextflow to handle http protocol for Singularity images #1791
• Fix params-file overrides config parameters [b03efca]
• Fix println failing test #1621 [8c6f0f9] [9d2e585]
• Let output env variables be optional (#1740) [3fca365]
• Add stub-run feature #1774 [3de45c2] [e2d6d55]
• Add overwrite option to trace/time/report/dag features #813 [a061547]
• Allow nested CLI params #1182 [19ab8a8] [df6204e]
• Allow setting google projectId in nextflow config [223b5d6]
• Make binDir accessible from the executor scope [1405a28]