First draft of inputfilter
Added the first unit tests for InputfilterModel
Completed the API for inputfilter
Fixed code based on PR comments
Merge pull request #41 from zfcampus/feature/inputfilter

Feature/inputfilter
[#41] Added RPC and Content Negotiation config for Inputfilter controller
[#41] CS fixes

- trailing whitespace, PSR-0 naming, visibility
Merge branch 'feature/41'

Close #41