First pass at supporting multiple backends.
Writing unit tests.
Adding config support.
Filling in s3 backend
Added metadata unpacking for local files.
Adding s3 test and mock code needed for it.
Hurray beer.
Adding s3client functionality and tests.
Adding delete functionality to s3client and integration test code.
Removing files that should not have been checked in.
Adding coverage files to git ignore.
Experimenting with goproxy support.
cleanup
Updating tram config
Overhauling index management