Replace some deprecated code and remove some compiler warnings
Merge remote-tracking branch 'dilbertside/issue96_JsonForm' into next

Conflicts:
	src/test/java/ch/ralscha/extdirectspring/controller/RouterControllerFormPostJsonTest.java
Remove some more compiler warnings and deprecated test code
Use a more correct and descriptive name for the parameter.
Add unit test for the isValid method from the class ExtDirectMethodType
Issue #96 modify test to include mandatory @RequestParam parameters to
updateInfoJsonDirect method