renaming br.manifest to br-lib.conf
renaming library.manifest -> thirdparty-lib.manifest
changing create-library command so it can create both types of libs
seperating the JsLibs methods in app and using JsLibs to return all possible libs
adding app level bib methods that don't return SDK level libs if they exist
changing create-lib command to use the new app lib methods so it can create apps that override SDK libs
deleting command tests that have been moved across to core
Merge pull request #670 from BladeRunnerJS/create-library-fixes

Create library fixes