Support meta refresh tag and Refresh header

[omederos]

Some websites return 200 and then do the redirection via other mechanisms, like:

1. Meta Refresh tag

Which means: Redirect to http://example.com after 0 seconds

1. The "Refresh" HTTP header

http://stackoverflow.com/questions/283752/refresh-http-header

I know the standard practice is to do a 301/302 redirect, but it would be great to identify the above scenarios as well.

I think I'll implement it and I'll submit a PR.

Any ideas about optional paramters, etc. would be appreciated.

[quark-zju]

Hi, nice to see the feature. Feel free to open a pull request.