add a new line
Merge pull request #13 from grigouze/newline_for_development_section

Fix README file
Don't save sshkey filepath in configuration if invalid during setup.
Custom option parameters should check for valid configuration.

This caused a problem when using vm creation command without configuration,
displaying an error about invalid datacenter value.
Add folders from gh-pages branch to `.gitignore`.

So we don't get a dirty index when switching from that branch.
Merge pull request #16 from yanndinendal/master

Add folders from the `gh-pages` orphan branch to the `.gitignore` file
New release 0.9