Rebase from linguist again

[mdespuits]

Any chance you could update from linguist again? There are some new features that would be very useful on the project I am working on. Thanks!

[grosser]

Took a look, but it's a mess and I also killed binary+vendor so merge/rebase is not really an option.

Most important changes are here:
09e1c96

I think the safes/best way would be to checkout linguist master, reapply the changes and the force-push

• instead of deleting sections -> =begin section =end -> no conflicts when merging
• keep vendor/binary logic (not sure why I removed binary but I think it needed some kind of other dependency)

[mdespuits]

Yeah, I made a quick attempt, but as I am not familiar with this gem's internals at all yet, I just gave up for now. Technically, we're not doing any computation against the methods I mentioned like binary? and image?, so I may be able to avoid that. Yes, it did require charlock_holmes, which we are trying to eliminate as it is not only another gem dependency, but it also has a system level dependency...

For now, I will just see about avoiding that mess. If not, I'll refer back here.

[mdespuits]

We were able to switch successfully. I'll come back here again if we need to get support for binary file detection. Thanks!