Do not override console.log

Expected behaviour

Using PM2 programmatically should not override console.log's native behavior when PM2 daemon is not spawned.

For example, console.log({a: 2}) should print { a: 2 }

Actual behaviour

Utility.overrideConsole() is called

In the example above, 2017-03-16 15:27:05: [object Object] is printed 😞

Steps to reproduce

$ pm2 kill

require('pm2').connect(true, () => console.log({a: 2}))

Software versions used

OS         : Windows 10
node.js    : v6.10.0
PM2        :2.0.12 up to 2.4.2

Start by tracing the programmatic connect path from require('pm2').connect(true, ...) to Utility.overrideConsole(). Reproduce the issue after pm2 kill with console.log({a: 2}); done means the native object formatting remains unchanged when the PM2 daemon is not spawned, while normal PM2 behavior is preserved.