Fixing a typo.
Merge pull request #2 from acook/patch-1

Fixing a typo.
Implemented Lotus::Utils::Kernel.Array
Implemented Lotus::Utils::Kernel.Integer
Implemented Lotus::Utils::Kernel.String
Fix CI, consider to use UTC time for String coercion
Fixed typo in Lotus::Utils::Kernel.String docs. Tiniest commit of my life :sparkling_heart:
Improved the semantic of Lotus::Utils::Kernel.Integer
add Github contributing guidelines

- https://github.com/blog/1184-contributing-guidelines
ensure .gitignore is consistent across all Lotus repos.
specify the LICENSE as markdown for prettier Github printing
consistent with other Lotus repos
Improved tests and documentation for Lotus::Utils::Kernel.Array
Merge pull request #3 from karlfreeman/various-tidying

Various tidying
SVG badges
Implemented Lotus::Utils::Kernel.Set
Improved Lotus::Utils::Kernel.Array tests and semantic.
It now returns nil if nil is given.
Improved Lotus::Utils::Kernel.Set semantic. It now returns nil if nil is given.
Implemented Lotus::Utils::Kernel.Hash
Implemented Lotus::Utils::Kernel.Boolean