Refactoring: Remove marker interface no longer used.
Refactoring: Moves inner utility function.
Add missing type parameter.
Refactoring test: Use lambda and method reference.
Refactoring test: Do not use '_' as identifier which might not be supported after Java 8.
Remove utility metho that can be replaced by method reference.
Refactoring test: Use lambda and method reference.
Add "Indexed" suffixed to some overloads which use 0-begin indices.
Fix ParallelSeq#force to work parallely.
Grouping is not Map.Entry.
Overloaded method omits argument of overloaded method one by one from right.
Optimize toMap.
Removes unused code.
Renames some overloaded to avoid ambigious lambda inference.
More convenient type of argument.
Remove unsafe min/max/minmax
Enhance javadoc.
Overloaded method omits argument of overloaded method one by one from right.
Fix test that fail on JDK8u20.
Add new method Seq#paritionBefore & Seq#paritionAfter.