Implementation of String#sub.
build status in readme [ci skip]
Implement Array#last properly
Make Array#last translatable
Implement String.swapcase/swapcase!
Adhering to review comments
Implement String.chop/chop!
Fix chomp! not returning nil when not changing str
Merge pull request #372 from winks/string-chomp

Fix chomp! not returning nil when not changing str
simplification
Merge pull request #371 from winks/string-chop

Implement String.chop/chop!
more idiomatic
Merge pull request #370 from winks/string-swapcase

Implement String.swapcase/swapcase!
small cleanups
Merge pull request #366 from goshakkk/readme-travis

Build status in readme
more nromal indentation
translation fix
Fixed #367 -- added Hash#store
Merge pull request #368 from judofyr/array-last

Implement Array#last properly
compare ints and floats separately