add ignores
add a cloud-init script for creating the build server

This can be used from the command line or from the console
add backend instance creation tool

create-server creates the backend instance, get-ec2-instance-id
extracts the instance id from the aws cli command line output
fix rpm build process

rpmbuild on AWS does not like _topdir definitions in the spec file.
This is better anyway, because _topdir in the spec file is not
portable enough.  The makefile is changed to pass the _topdir to
allow builds by non-root in the repo directory.