{ "logLevel": "warn" } should not print browser-sync configuration on start.

Apologies in advance, I have a hunch this should be in browser-sync repo but I'm running via lite-server so I wanted to start here. Also this is obviously a really low priority - just unpleasantly tickling my sensories.

### Issue details

`{ "logLevel": "warn" }` should not print browser-sync configuration on start.

The configuration data should not meet or exceed the log threshold of "warn" - IMO it belongs at "debug"

### Steps to reproduce/test case

file: lite-server.js
```
module.exports = {
"logLevel": "warn"
...
}
```
run command
`>> lite-server --config lite-server.js`

output (current)
```
** browser-sync config **
{ ... big json config block ... }
Access URLs:
-----------------------------------------------
Local: http://localhost:8080/connect/
External: http://192.168.2.128:8080/connect/
-----------------------------------------------
UI: http://localhost:8081
UI External: http://192.168.2.128:8081
```

output (expected)
```
** browser-sync config **
Access URLs:
-----------------------------------------------
Local: http://localhost:8080/connect/
External: http://192.168.2.128:8080/connect/
-----------------------------------------------
UI: http://localhost:8081
UI External: http://192.168.2.128:8081
```

The configuration data should not meet or exceed the log threshold of "warn" - IMO it belongs at "debug"

A log threshold of "silent" produces the the expected output but obviously doesn't log server errors or warnings.

### Version
- lite-server [2.3.0]
- Browsersync [ 2.18.8 ]
- Node [6.10.2]

### Affected platforms

- [ ] linux
- [X] windows
- [ ] OS X
- [ ] freebsd
- [ ] solaris
- [ ] other _(please specify which)_

### Browsersync use-case

- [ ] API
- [ ] Gulp
- [ ] Grunt
- [X] CLI

### If CLI, please paste the entire command below

`lite-server --config lite-server.js`