Add Apache-2.0 License.
Remove example.

Not needed for now.
Add CHANGELOG section.
Add CONTRIBUTING section.
Update docs.
Merge pull request #15 from colmarius/update-docs

Update docs
Use back ticks for wraping file.
Small updates.
Fix flash cli init call.
Add write_config_file spec helper.
Flash config can load from a file.
Rename group to test.
Add fakefs gem.
Use fakefs gem.
Add spec for no config file found.