* Fix Ubuntu/Debian installation instructions.
* Fix Ruby package name. It's supposed to be ruby-daemon-controller, not
daemon-controller-ruby.
* Add Ubuntu and Debian installation instructions.
* Add Debian packaging files.
* Add documentation about cryptographic verification and promote the use of
rubygems-openpgp-ca.
* Rename package:upload to package:release, and have it automatically create &
upload a tag too.
* Fix package:upload task.
* Allow configuring the Ruby interpreter for starting the echo server
during unit tests.
* The echo server should add a newline to PID files.
* Use RbConfig instead of Config when possible.
* Add run_echo_server to gemspec.
* Add license information to gemspece. This way this info can be retrieved
using rubygems.org API
