This library was written by Alessandro Colantonio.
This repository is a mere attempt to keep sources with necessary patches (in our case,
Serializable ConciseSet) intact and available. As a side effect, several changes
to the syntax were made (see e.g.,
capture#XXX in error message (Java Generics))
in order to make code compilable on Apple's JDK 1.6.0.
Additionally, a maven project was created and artifacts (extendedset:extendedset) were deployed
to the EBI repository.