More functionality + docs

flatten methods now handle dictionaries properly + more docs

New functions

Added a new transform utility + bug-fix the foreach

New functions

Added a foreach.

New classes and functions

Added a count set class and an anagram test function.

Beta release v5

Added a sub-sequence function.

Initial beta release V3

Added a K-way merge function

Initial beta release V2

Added some classes

Initial beta release

Merge pull request #1 from amartya00/add-license-1

Create LICENSE