some code style settings
generate empty impl classes for IPv4/6 editors, validators, value
providers (extension point)
minor changes
create widgets impls from extension point
setup extension point to access the modelcontroller
some code style settings
rudimentarily impl of 2 widgets. 
widgets are now visible in the view.
compose some test params with editors and widgets
adapted to the new API modifications
adapt parameter demo to modified plugin design
minor changes
add ValueProvider and Validator classes for IPv6 (not impl. yet)
fix lost IPv6 tab widget
added table viewer widget, kept grid view as type
fixed typo
refine Editor
Merge branch 'sprint1' of https://github.com/TestingTechnologies/PlayCustomParameters.git into sprint1
made the code Java 1.6 compatible and adapted to the new api 
Merge branch 'sprint1' of https://github.com/TestingTechnologies/PlayCustomParameters into sprint1

Conflicts:
	ttworkbench.play.parameters.ipv6/src/ttworkbench/play/parameters/ipv6/factories/IPv4EditorFactory.java
	ttworkbench.play.parameters.ipv6/src/ttworkbench/play/parameters/ipv6/factories/IPv6EditorFactory.java
	ttworkbench.play.parameters.ipv6/src/ttworkbench/play/parameters/ipv6/widgets/AbstractWidget.java
	ttworkbench.play.parameters.ipv6/src/ttworkbench/play/parameters/ipv6/widgets/DefaultWidget.java
minor fixes from merge