forward seneca logging to bunyan

index.js

var config = {
    log: {fileinfo: {level: 'INFO', filename: 'whitelabel'}, console: {level: 'DEBUG'}, name: 'whitelabel'},
    seneca: {level: 'INFO'}
}
var bunyan = require('bunyan-loader')(config) //setup bunyan
bunyan.info('Using node', process.version)
var seneca = require('seneca')
var logger = bunyan.child({scope: 'seneca'})
seneca = seneca({
    log: {
        map: [
            {level: 'all', handler: function () {
                if (typeof arguments[4] == 'object') arguments[4] = JSON.stringify(arguments[4])
                delete arguments[0] //remove timestamp - bunyan has one
                if (arguments[2].toUpperCase() == config.seneca.level) //todo: use range
                    logger[arguments[2]](Array.prototype.join.call(arguments, ' '))
            }}
        ]
    }
})