Custom / changeable date format
Merge branch 'branch15' of https://github.com/m-szalik/tjconsole into branch15

Conflicts:
	src/main/java/org/jsoftware/tjconsole/DataOutputService.java
	src/main/java/org/jsoftware/tjconsole/command/definition/InvokeOperationCommandDefinition.java
Output changes