Styles with different format are uploaded to S3 with the wrong content-type

[thoughtbot]

Styles with different format are uploaded to S3 with the wrong content-type

[sorentwo]

The commit this ticket is pointing to doesn't seem to exist anymore, and as this issue has persisted it doesn't seem like it was ever merged anyhow. I've added some shortcut content_type matchers and changed s3 storage to read content type when it stores, rather than reading the original instance's content type.

This:

:content_type => file.content_type.to_s.strip

Instead of this:

:content_type => instance_read(:content_type)

The patch and tests are in my branch: http://github.com/sorentwo/paperclip

See these commits:
http://github.com/sorentwo/paperclip/commit/a886e76716907bf0b4746efd346a0615f36f97f9
http://github.com/sorentwo/paperclip/commit/3cc0006cfa9a4ea83edbc75a0ca71a6a1073941b

[momolog]

This really ought to get merged to the trunk soon.
There is no use in having a pluggable processor scheme, if the resulting files are all getting served with the content type of the original file.

[sikachu]

@sorentwo I've merged two of your commits into one single commit, and all the test pass. Thank you for your contribution :)