Enumerable#exactly? - more examples, more specs
Merge pull request #10 from pvdb/fix_enumerable_exactly_example

Enumerable#exactly? - more examples, more specs
add "Leave nonconvertible keys untouched when symbolizing keys." to doc and provide an example

       #   { 1 => "a" }.symbolize_keys #=> { 1 => "a" }
Merge pull request #11 from 404pnf/patch-1

document msg and code example for  "Leave nonconvertible keys untouched when symbolizing keys."
Add Enumerable#average
Rename Array#tail to Array#butfirst to avoid confusion with list terminology
Fix build
Add a Changelog
Mention changelog in the README
+ Add methods to Numeric about scale
+ Mention new methods in CHANGELOG
! Fix typo on filename
Merge pull request #12 from PikachuEXE/feature/numeric-scale

Add methods to Numeric about scale
Minor change