added failing unit tests for serialization
Add classes for generic preferences
create container classes for generics to allow proper serialization and deserialization with gson and jackson
extract ContainerListObject to own file
remove useless testmethod
extract some methods and constants
refactor PreferenceType to PreferenceTypeInformation because of former misuse of enums
changelog
added SharedPreferenceActions action to clear only values that were explicitly defined in the interface
renamed Putter and Getter to more meaningful names
[maven-release-plugin] prepare release 2.1.0