Missing comma in BooksController for README.md

I'm not 100% sure if this is an error or if i've misunderstood the syntax.
Merge pull request #5 from JoeOBrien/patch-1

Missing comma in BooksController for README.md
Made getBeforeFilters dynamic in Controller

When using more than one before filter on controller it would die as api-guard might have been second position in the array.
clean up
forgot to check the apiMethods key
Formatting changes