default parameter to the middleware fn

[Amgad-Atef-Mohamed]

@eiabea @marklawlor @rimiti

aclify/src/classes/acl.ts

Line 470 in ffed059

if (!isUndefined(actionsTmp)) {

I think this condition wrong when anyone uses the middleware without sending the permissions parameter.

aclify/src/classes/acl.ts

Line 468 in ffed059

const resource = numPathComponents === 0 ? url : url.split('/').slice(0, numPathComponents + 1).join('/');

also, this condition wrong when anyone uses the middleware without sending the number of Paths parameter.

Redis storage take the second parameter as a string with is the prefix but in the readme example take an object
// Using Redis store
const acl = new Aclify.Acl(new Aclify.RedisStore(RedisClient, {prefix: 'acl_'}));

so it must be:

const acl = new Aclify.Acl(new Aclify.RedisStore(RedisClient,'acl' }));