Updates to docs and config:

- Added step-by-step install documentation and CloudFormation config
- Added Makefile
- Support python-daemon >= 1.6
Added test
Use MetaSack to merge existing and new packages.

Should fix issue with newer versions of createrepo and still be
backwards compatible.
See https://bugzilla.redhat.com/show_bug.cgi?id=1058975
Added --delete-old option
Merge pull request #1 from paulegan/update

Updates