Add some usuful methods to Pivot Collections like those needed to process all elements, going more "function style", like addAll, contains, etc ...
To simplify usage from people coming from other languages, try to align to other languages names/conventions (for what is possible) , like Scala, C# .
Verify even if add a interface (defining a single method) that could be passed to some methods to contain logic for processing all elements (like the apply() in Scala), and chose a right name for it (maybe function or other similar).
But for more changes in Collections (still to be discussed), wait the 3.0 ...
|Fix Version/s||2.1 [ 12324823 ]|