add fallback for STANDALONE_APPS variable in server.settings
add fallback for STANDALONE_APPS variable in server.settings


Former-commit-id: ed143ef97a10a4323bafc92eb0c64fafbb8a4ce5 [formerly 39f386d86159fd304f2fcce665d9109d1e9c25a1] [formerly 39f386d86159fd304f2fcce665d9109d1e9c25a1 [formerly cfd35044b207f7c760db3fb98513f54b7cc814aa]]
Former-commit-id: 7a4df8fbddb1733c82ff38cdadf0836990648a7f
Former-commit-id: 9ab23034b4b38c3c09d6dc8b55d4667d80f3a75f
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine