Change the content so that we can publish it to
specs.openstack.org/openstack/development-proposals - and then retire
this repository.
Fix some formatting problems, remove not used files from documentation
and update docs to mention retirement of repository.
Once this change is merged, the repository can be retired.
Change-Id: I2e28d847fe98d8951c6fb2406838f3774d9e653d
As agreed in PWG Milan meeting, this patch is to
rename the folder user-stories to development-proposals.
This patch also move stale proposals to 'parking' folder.
Change-Id: I3712910245df60cad6527ac91eeee7271050ccf9