Removed unnecessary ZF2 module.

Although I understand why the ZF2 repo was included as a submodule. I dont think it is the route we need to go since we are slowly going to incorporate a zend server in the mix. 

Will be editing the installation readme. After creation of a new project. EX feeds.unomaha.edu the user should run the composer to install the latest zend framework along with the libraries that the user needs. If we were going to go to the route where we were only using the ZF2 library then it would be ok. But it looks like we are going to need other librarys like the gdata library to be incorperated in with the application. 

This also allows us to always have the latest stable framework to work with. Can explain more when needed.