o Adding an experimental 'app exec' command to run commands with the configured environment.
Makefile now allows install outside of git
o Adding a '-C <path>' option.
  It will first change directory to the specified directory before execuing <command>.
  This is similar to what tar and git does.
  Fixes #10.
Switch to correct CI status
Merge tag 'v0.5.1' into debian/sid
Release 0.5.1
Build and make changelog scripts
Set executable