v0.3.0

• Shows steps that are happening behind the scenes during vendir sync
• Print lock config and allow custom sync file via -f

ae2c70a41f723f583be2542b604937bdbb3ef7610806c016358570e9bfe275b0  ./vendir-darwin-amd64
c8826b72c8321fb402f37a9b17ea9bd0cbdd6cd0ec2e5de7c91640c44fcee143  ./vendir-linux-amd64
bc30588bf44e112eddfe89a47d63e8bcf598313198813ac4ba4432881f8dfd26  ./vendir-windows-amd64.exe

(Installation instructions: https://k14s.io/#install-from-github-release)