Try for Windows on Travis

Simplify Travis build

Minor code format cleanup

Cut 2.3.1 release

Bug fix: avoid panic when no config

Cut 2.3.0 release

User selected config on create-collection

Update dependencies

Update Homebrew instructions in README

Cut 2.2.8 release

Strip directory path from the program name

Use command name from the command line

Update dependencies

Mention Homebrew install option for macOS

Cut 2.2.6 release