v0.4.0

• Add backend option for components.

v0.3.0

• Force rsync to use checksums when installing components.
• Units have a new uninstall action.
  See the README for details.

v0.2.4

• Fix issue where wrong host-specific file would be installed.
• Only display installed messaged if unit was actually installed.

v0.2.3

• Fix bug where component would not install
  if destination does not exist.

v0.2.2

• Copy system links in components when using rsync.

Version 0.2.1

• Allow all keys in manifest to be strings or symbols.

Version 0.1.1

v0.1.1

Version 0.1.1

Version 0.1.0

• PackageLookup#tools separates tool identifier and tool command.
• PackageLookup#installed? checks for tool command before lookup.
• Support for FreeBSD's pkgng added to PackageLookup.