Loosens up the typing of SimpleIterator; implementors can supply
Optional<? extends T> in SimpleIterator<T>.nextIfAvailable
Upgrades maven-install-plugin to 2.5
Implements last() method on CollectingIterable
Adds SuccessorIterable which iterates computed successors from an
initial element. Not part of public API yet.
HeadAndTail type. Adds some other functions.
Adds function to insert string between two other strings.
Starts on the Reflect API. Implements getClass/type, newInstance, and
isA(Class) predicate.