Include dynamic and additional URL formats

[amsross]

• Correctly display s3 url based on the formats laid out for specific regions in the documentation.
• Add a log the subdomained version of the url

These changes were made according to the documentation on these pages:

• http://docs.aws.amazon.com/AmazonS3/latest/dev/WebsiteHosting.html
• http://docs.aws.amazon.com/AmazonS3/latest/dev/WebsiteEndpoints.html
• http://docs.aws.amazon.com/general/latest/gr/rande.html#s3_website_region_endpoints

This relates to, includes, and expands upon the changes in #6

[fernando-mc]

@amsross Looks good. Merging. This will be in the next versioned release.

[fernando-mc]

This url isn't correct. I'll remove it when I push this version.

Compare:
http://serverless-finch-test.s3-website-us-east-1.amazonaws.com/ (what is output by line 274)

vs. what is output by this line:
https://s3-website-us-east-1.amazonaws.com/serverless-finch-test/index.html

The second link fails when deploying in us-east-1

A URL that does actually work (but isn't the official website endpoint url) is
https://s3.amazonaws.com/serverless-finch-test/index.html

[amsross]

Maybe it makes sense to add back your original url format while you're at it.

this.serverless.cli.log(`https://s3.amazonaws.com/${_this.bucketName}/${fileKey}`)

[fernando-mc]

@amsross I could but that's also incorrect when you publish to another region. I prefer line 274. We'll stick with the correct format not the hacky "but it works" one I had before XD

Here's an example of where the line you just posted in that comment would fail. Let's say I deploy a static site to S3 in us-west-2. The working URL (and correct as far as AWS goes) is:
https://s3-us-west-2.amazonaws.com/serverless-finch-test-nonuseast1test/index.html

If I use the https://s3.amazonaws.com/ root all the time then the URL would be
https://s3.amazonaws.com/serverless-finch-test-nonuseast1test/index.html
Spoiler - this fails.

So TLDR there is a region issue in the previous version that was using s3.amazonaws.com

The newest version will fix it by changing to the correct output you put together on line 274. But I will trim out line 273 because it isn't correct.

[amsross]

LGTM!