Added support for website redirect location to S3 client.

Also DRY'd up parsing responses for s3 object methods,
created a single method that extracts s3 object information
from the http response headers.  Simplified parsing responses
for a number of object methods (GET, HEAD, PUT, etc).
Added support for Amazon S3 website hosting to AWS::S3::Client.
Merge branch 's3-website'

Conflicts:
	lib/aws/s3/client.rb
Added high-level bucket website configuration.