Renamed ProjectionSelector, ProjectionJoinSelector, ProjectionPredicate to DelegateSelector, DelegateJoinSelector, DelegatePredicate
Changed EqualityComparer and Comparer method signature
Removed Ginq::seq()
Added `groupJoin`
Changed EqualityComparer and Comparer method signature
Changed testSelect()
Improved `repeat` method
Removed `find` `rest`
Added `first` `firstOrElse` `last` `lastOrElse` `aggregate` `elseIfZero`
Improved doc domments
Fixed assertEquals() calling parameters
Updated README