Add follow_if_different_location config

[laurent35240]

I added follow_if_different_location in order to be able to decide if we want to process redirect if location in the same.

We have example of websites redirecting with same location but with different cookies and so not ending with a redirection loop. So in this case we do not want to stop redirections.

[tomas]

Looks good, thanks. I'm thinking it's clearer to say follow_if_same_location (default: false) than the opposite. What do you think?

[laurent35240]

I chose follow_if_different_location in order to have consistent explanation of configuration in README.
To always have something like When true, Needle will only follow redirects that...

But if you really prefer follow_if_same_location, sure I can change it.

Let me know

[laurent35240]

Hi

@tomas Any chance that this pull request will be merged soon?

[tomas]

If you can change the param to follow_if_same_location I'll merge it. It seems to make more sense considering the other options:

[laurent35240]

OK it is changed