Authorization (draft) first done
Add a missing parameter to README
Uses en_US_POSIX; Checks _accessKey and _secret before authorize request
Merge pull request #14 from flipstudio/master

S3 Authorization
Minor reformatting
Adding documentation
Changing baseURL property to strong
Bumping version to 0.2.0
Merge pull request #13 from yaotti/patch-1

Add a missing parameter to README
Add AWS 'key' form input element according to AWS documentation

http://doc.s3.amazonaws.com/proposals/post.html#Access_Control_Example

The above document explains that 'key' is a mandatory form element when
submitting POST requests to S3. I have added this element before 'file' since
the order matters:

https://forums.aws.amazon.com/message.jspa?messageID=131965
Merge branch 'master' of github.com:AFNetworking/AFAmazonS3Client
Expanded the signing process to include AMZ headers and also correctly add Content-Type and Content-MD5 (if provided) to the authorization header
recalculate authorization after add Content-Type in header
Merge pull request #18 from RoCry/Authorization-Miss-Content-Type

recalculate authorization after add Content-Type in header
Merge branch 'master' of https://github.com/robertjpayne/AFAmazonS3Client into robertjpayne-master

Conflicts:
	AFAmazonS3Client/AFAmazonS3Client.m
[Issue #15] Refactoring request AWS canonical authorization header signing
Minor formatting
Adding region property

Refactoring baseURL calculation
Fixing analyzer warning for possible nil value of date in dictionary literal
Add key parameter unless added explicitly

Signed-off-by: Mattt Thompson <m@mattt.me>