Copy S3 server implmenetation and unit tests from Nova.
Add fileutils from oslo-incubator and refresh incubation modules.
Upgrade script doesn't copy buckets content because Nova S3 server
is not intended to be permanent full functionality object storage, but
has to be used temporary to CreateImage operation only.
Change-Id: I7d38b0a8e014dfff8238e7134d837d1074e4dd95
This code introduces standalone service which proxies its calls to
existing nova EC2-API.
All the code here except for the ec2api/api/proxy.py,
ec2api/api/ec2client.py and some util functions is taken from current
nova and unused functionality is cut of it.
The proxy.py and ec2client.py files implement the new code which
proxies incoming request (on port 8788) to original EC2 API in nova
on port 8773.
The result is transparently translated back to user.
Change-Id: I4cb84f833d7d4f0e379672710ed39562811d43e0
Ronald Bradford