Updated $pushAll tests to be compliant with MongoDB and Mongoose API's
1.0.4 Added $pushAll  support
http://docs.mongodb.org/manual/reference/operator/update/pushAll/
1.0.5 Added $pullAll support
http://docs.mongodb.org/manual/reference/operator/update/pullAll/
Updating docs
1.0.6
Added bunyan logger.
You can set the log level with

    npm test | node_modules/bunyan/bin/bunyan
Merge remote-tracking branch 'original/master'

Conflicts:
	lib/operations/Operations.js
	test/operations/PushAllOperation.spec.js