update README to add Hash example
conditionally disable a test for behavior which is missing/broken on Rubinius
add Hash#get returning Option, like scala
update README to add example of Hash#get
bump for release 0.4.0
rename README to have markdown extension .md
Translate README to markdown syntax
Update README to link A Tale of Three Nightclubs
Update README to fix up travis and gemnasium links
Merge pull request #4 from ms-tg/master

Move README to github-friendly markdown syntax
Fix Left and Right methods to be public module functions
Add .rvmrc
Implement Array#flatten(depth).
Fix flat_map for objects that don't respond to to_a.
Merge pull request #5 from crealytics/master

Implement Array#flatten(depth)
bump for release 0.4.1
Revert "Fix flat_map for objects that don't respond to to_a."

This reverts commit d56e67b8e382ed8708751a7bcf896ea4dc3cdc24.
Clarify difference between Array#map and Array#flat_map
bump for release 0.4.2
Switched from .rvmrc to .ruby-version and .ruby-gemset