Remove commented out codes
Change Eclipse formatter settings and apply the format to all java files
Change the scope of some loop vars to local
Refactor reduce(T, BinaryOperator) and overload reduce(BinaryOperator) method in 4 interfaces
Add some methods to the 3 numeric interfaces and impl product method to 3 impl classes: generate, random, product
Add some methods to the 4 interfaces: take, drop
Add MetaTest
1.0.0-beta1-SNAPSHOT