Changed the way pass region and debug.  Now works with --region eu-west-1 and --ec2debug
Merge branch 'master' of https://github.com/gibsop1/ec2-expire-snapshots into gibsop1-master

Conflicts:
	ec2-expire-snapshots
Fix --region option, thanks to Paul Gibson (fixes #8 on github)
Add --ec2debug option, thanks to Paul Gibson
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