Two Problems: Instructions on originating messages not working, and resulting issues with Drivers.

Hi, I'm trying to originate a message to slack - so I started with using the example here https://botman.io/master/driver-slack

```
DriverManager::loadDriver(SlackDriver::class);

$o = SlackChannel::findOrFail($this->argument('id'));
$botman = BotManFactory::create([
'slack' => [
'token' => $o->slack->getBot()->token,
]
]);
```
(I have confirmed the token is correct.)

I"m getting an error:
`Symfony\Component\Debug\Exception\FatalThrowableError : Type error: Argument 1 passed to BotMan\Drivers\Slack\SlackRTMDriver::__construct() must be of the type array, object given,`. Not sure why it was falling through to the RTM driver?

**1st Problem:**
I've put some "dumps" in DriverManager::getMatchingDriver() and see that it first selects `BotMan\Drivers\Slack\SlackDriver` which appears to fail the tests `if ($driver->matchesRequest() || $driver->hasMatchingEvent()) ` and then selects the `BotMan\Drivers\Slack\SlackRTMDriver` which causes the exception.

(BTW: I see it correctly connects to slack and gets the BotID and BotUserID.)

So what am I doing wrong here?

**2nd Problem:**
The fact that the code falls through to the second driver `BotMan\Drivers\Slack\SlackRTMDriver` the call

```new $driver($request, $this->config, $this->http);```

is incorrect since SlackRTMDriver::_construct is

```__construct(array $config, RealTimeClient $client)```

Start with DriverManager::getMatchingDriver() and compare the SlackDriver and SlackRTMDriver paths described in the report. Read SlackRTMDriver::__construct(array $config, RealTimeClient $client) alongside the call new $driver($request, $this->config, $this->http). Done means the originating-message flow selects the appropriate Slack driver without the reported type error.

Written by the indexing model from the issue text.