Deployer: Don't modify include_path

[ntzm]

We recently came across a perplexing bug, where the cause was a different library using require 'autoload.php'; where they wanted to load the file in the same directory, but it was including your autoload file instead. I understand this would be a large breaking change for you, but I don't think you should be modifying include_path. It could be done in the next major release.

[antonmedv]

Yes, I'm thinking about refactoring all this autoload part of deployer.

[antonmedv]

Fixed in master. Please verify.