fixes #6512 - move valid notices routes inside resources block

In Rails 3.2.8, it's not seeing the previous notice route get_new as
being part of the engine.  Moving inside a resource block fixes that
problem.  I also removed 2 routes that aren't valid and shouldn't exist
anymore - note_count and auto_complete_search.
Merge pull request #4393 from stbenjam/6512-notices

fixes #6512 - move valid notices routes inside resources block