• Upgrades wdlTools to 0.10.5
• Adds dxCommon dependency
• Sets either default or null value for missing optional block inputs, and throws an exception if there are any missing required block inputs
• Addresses the situation where a call input references a field of the scatter variable
• Updates the mechanism of comparing instance types to select the cheapest one for execution
• Fixes to the "x appears with two different callable definitions" compilation error
• Increases disambiguation dir limit to 5000
• Simplifies job names