v0.3.0

• Fix @overlay/remove to get rid of array items and documents, without leaving nils in AST

af316b851261a7f0e5e93c111e7a466ccbc3100654c4f868e9b72af26269f2a4  ./ytt-darwin-amd64
c12a2078d3d5e851dfb32a799b3ccb8b4b9fa082b37d18d04e4ab098c2432f09  ./ytt-linux-amd64
52d02464f44bf2dc7b7fac32ec1b51614e8054e1581e8ed6286f8a4ad250005c  ./ytt-windows-amd64.exe