• Downgrade Swift Tools versions to 4.0 #27 by @yonaskolb
• Make Scheme intializers public #28 by @yonaskolb
• Change PBXGroup.children to be an array #26 by @yonaskolb
• Make XcodeProj writable #20 by @yonaskolb
• Write baseConfigurationReference #24 by @yonaskolb
• Convert booleans to YES or NO #23 by @yonaskolb
• Make more properties public #19 by @yonaskolb