Merge tag '0.3' into nightly

0.3
added option parser to handle commandline arguments

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
added support for running headless vms

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
minor change in wording

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
added license to gemspec

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
added gemfile

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
added thor dependency

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
replaced optparse with thor

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
extracted livecd logic into lib

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
don't expose vm prefix anymore, handle it internally within livecd module

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
Merge branch 'feature/thor' into nightly
version bump to 0.4

Signed-off-by: Dominik Richter <dominik.richter@gmail.com>
Merge branch 'release/0.4'