Observer & Proxy Abstraction Layer (#37)

[nbrugger-tgm]

Implements the changes stated in #37.

Breaks:

• List Support
• setReactStrategy (deprecated anyways)

The changes very fundamental and a lot of documentation is outdated.

Follow up work:

• Create examples for the new classes
• Change ProxyCreator implementation
• Update documentation

[nbrugger-tgm]

Testing

Some features are broken that should not be

In need of a fix:

• ReactiveSubject
• Everything that fails EXCEPT LIST SUPPORT

[nbrugger-tgm]

Renaming

Beside the ProxyCreator section all renames should be considered and applied

Style

All code should be formated correctly

[nbrugger-tgm]

Warnings

The number of warnings due to missing generics or unsafe casting should be reduced

Documentation

The new classes lack propper javadoc