Feature logging

@rynowak @yishaigalatzer 

I haven't rebased to the newest stuff yet.
ReflectedActionConstraints to text and attribute routing still need to be considered.

Sample graph view
![image](https://cloud.githubusercontent.com/assets/3495894/3726525/0bf25396-1694-11e4-9c1b-cb32b48c0008.png)

Sample text view
![image](https://cloud.githubusercontent.com/assets/3495894/3726575/a0a81f20-1694-11e4-9568-59e4e77a7722.png)

Action selector is created with DI - so it should DI the logger factory rather than getting it from request services.


The next issue we encounter is that action selector is a scoped component, meaning that it's created each request (and the logger is created each request).