Better Package Characterizer

[josegonzalez]

At the moment, the Package Characterization system uses token_get_all() to figure out what kind of code a particular project has. While nice, it does not detect whether a piece of code is following CakePHP standards, nor whether it is in a proper plugin/app format.

Ideally, we'd have a more robust package characterizer that would use ReflectionClass, but not bork on Fatal Errors from not being able to include files. The solution to this does not have to be in PHP.

[shama]

I could write a simple script that evaluates a package structure / code use and rates it. We could also use CodeSniffer as well. It'll generate a lot of errors but we can play around with a good threshold number to factor in.

This seems related to #10 as well.