revising docs
updating format specifiers to use format method
fixing up export tests in-progress
more test fixups in progress

test export db is not working due to an authentication issue
fixing use of pg_dump
adding flag for delete outdated
adding comment about logging statements; bolding development installation method
changing appearance of command line args global var.
changed exception handling during upload to catch all exceptions
updating formats in installer; correcting use of command line args
fixing output for grant fn
setting executable
fixed permission problem during export
documentation refinements
adding a retry to file uploads and reader adding to get around an unexplained error during uploading
repeating md5 verification failure; retry one time only; HttpError exception is handled during md5 verification
Merge pull request #20 from dz1111/CloudExport

Cloud Export Corrections: Two major problems have been resolved:
1. All files not being uploaded.
2. Available files not being reported correctly.
Other minor problems have been solved. Next step: Refine testing, Provide notifications.