Removes the dependency on the /bin hardcoded path.

[xmontero]

The original code assumes you will want to install binaries at /bin but probably this is not the case if you follow the defaults in composer, which will install them in /vendor/bin.

You now can have the PhantomJs in /vendor/bin if you prefer, or even at any other path, and the Engine will automatically fetch it from the proper path via the PhantomInstaller\PhantomBinary helper class.

[heddn]

I think the dependency on PhantomInstaller is considered soft. You should check if the class exists before using it, no?

[jonnnnyw]

You an use $client->getEngine()->setPath('path/to/phantomjs');. The next major release will remove the PhantomJS installer so this will be a compulsory setting.