Version 0.0.57

* Improved log buffering, added writeBuffer parameter (default 64kb) to
config in addition to writeInterval parameter
* Added impress.cloud.js and impress.health.js with stub cloudware
functionality
* Fixed SSE messaging propagation on cluster
* Added filter for IPC retranslation in master process
* Changed impress.init parameters to hash { master: callback, worker:
callback, instance: callback }
* Moved impress.log.js to plugins, so it is optional now