Finished separation of Builders, made builders final.
Added toBuilder() method for all kind of contexts and queries.
 Fixed invalid inheritance for some query types.
 Added according create methods and made constructors private.
Unified queries with common aspects.
Fixed several quality issues.
Several minor quality fixes, especially also in the area of LoadableResources.
Fixed issues with loading.
Removed unused import.
Slightly unified API when writing/updating spec.
Merge branch 'master' of https://github.com/JavaMoney/jsr354-ri