Version 4.0.0

[davidcole1340]

This is an issue post to gather all information about Version 4.0.0.

Current changes:

• New caching system
• Dependency injection
• Part factories
• REST client will be passed around instead of using static methods

[davidcole1340]

@aequasi since everything will be non-static, what do you think about having drivers for the REST client so that we can use the ReactPHP HTTP Client for async requests and use Guzzle when not using the WebSocket?

[cryptiklemur]

I think that's a really good idea.

[davidcole1340]

@aequasi what do you think about having promises everywhere? There are some things that don't need promises but should we still use promises so that it is consistent?

[davidcole1340]

I haven't converted these methods yet as they don't use HTTP requests:

- Channel::getOverwritesAttribute()
- Guild::getRolesAttribute()

[cryptiklemur]

being consistent is generally a good idea, i'd say lets put them everywhere

[davidcole1340]

Version 4 being released.