Update for 0.0.8

Hi @MoriTanosuke

Sorry for this "big" PR again. It's hard to be concise in the commits while keeping their number low.

So this PR contains:

- Update AWS API to 1.3.27
- You can now specify endpoints using the region handle (passing the whole URL is still supported)
- Multipart uploads now uses the real file name
- Multipart uploads will check if the remote and local checksums are equals
- Fixed a couple of minor bugs
- Improve output (especially for Multipart Upload)
- Added the ability to upload multiple files at once. You can set multiple `--upload` and `--multipartupload` options or use wildcard (*) in filenames

I think this covers it all. I finally deployed this project on my web server and I am using it in order to ship our Cpanel backups to Glacier.

As usual, comments are more than welcome.