rspec: fix image_mode default

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
fix spec/fedora/Vagrantfile and docs

Signed-off-by: Hiroshi Miura <miurahr@linux.com>
Merge pull request #246 from miurahr/fix_vagrantfile_for_fedora

fix spec/fedora/Vagrantfile and docs
Merge pull request #245 from miurahr/more_config_spec

rspec: fix image_mode default
Bash script to package a base box from qcow2 image
Merge pull request #250 from jakobadam/package-kvm-box

Bash script to package a base box from qcow2 image