Generate lenses code.
Add sonatype snapshot resolver to build.sbt
Add lenses to plugin dependencies.
Make generated lenses to go through Options.
Release 0.1, bump up to 0.2
Add support for optionalX lens.
Testing bug: Fix message selection to work when there is only one message in the scema
Try adding more memory, avoid forking.
Rename integration to proptest.
Allow empty package names.