Added messenger.
Added time.
Added start/stop method and events.
Renamed renderer to controller.
Fixed some issues regarding stopping of data sources.
Added multicolumn output in console support.
Added hostname display support in console.
Config files are normalized before processing now.
Added support for variables.
Code cleanup: changed all usages of this to _this in methods.
Code cleanup: Changed all single quotations to double.
Added support for statistic functions.
Replaced perfmon module with own implementation.