Remove code which allowed ec2-api-manage to attempt to escalate
privileges so that configuration files can be read by users who
normally wouldn't have access, but do have sudo access.
Change-Id: I1ab7052fc117f064054e3127517da77598b6d27b
Closes-Bug:#1611171
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