Stable version compatible with Crystal 1.0

https://github.com/alex-lairan/monads/pull/58

#53 Make Monads compatible with Crystal 0.29.0

New Try monad

=> https://github.com/alex-lairan/monads/pull/47

New Task monad

=> https://github.com/alex-lairan/monads/pull/45

Improve List monad

Initialize list with [](*args) => https://github.com/alex-lairan/monads/pull/34

Add List#reverse => https://github.com/alex-lairan/monads/pull/41

Add Comparable => https://github.com/alex-lairan/monads/pull/35/files

Add List#next and Indexable => https://github.com/alex-lairan/monads/pull/36 => https://github.com/alex-lairan/monads/pull/42

Add #sort and #sort_by => https://github.com/alex-lairan/monads/pull/43 => https://github.com/alex-lairan/monads/pull/44

Add #permutations, #subsequences and #join => https://github.com/alex-lairan/monads/pull/40

Add #last and #empty => https://github.com/alex-lairan/monads/pull/39

Add #to_s and #inspect => https://github.com/alex-lairan/monads/pull/38

Misc

Add #| (bind) and #>> (sequence) operator => https://github.com/alex-lairan/monads/pull/46

Update readme => https://github.com/alex-lairan/monads/pull/48 => https://github.com/alex-lairan/monads/pull/50 Thanks @amelie-certin

Implement Comparable(T) to Maybe monad and remove redundant #== method.

=> https://github.com/alex-lairan/monads/pull/5 => https://github.com/alex-lairan/monads/pull/14

Multiples methods reimplementations. Create Monad(T) and Fonctor(T)

=> https://github.com/alex-lairan/monads/pull/6 => https://github.com/alex-lairan/monads/pull/16 => https://github.com/alex-lairan/monads/pull/19 => https://github.com/alex-lairan/monads/pull/20 => https://github.com/alex-lairan/monads/pull/23 => https://github.com/alex-lairan/monads/pull/24 => https://github.com/alex-lairan/monads/pull/27 => https://github.com/alex-lairan/monads/pull/28 => https://github.com/alex-lairan/monads/pull/29 => https://github.com/alex-lairan/monads/pull/30 => https://github.com/alex-lairan/monads/pull/31 => https://github.com/alex-lairan/monads/pull/32

Use structs instead of classes

=> https://github.com/alex-lairan/monads/pull/9 => https://github.com/alex-lairan/monads/pull/22

Rename Result to Either

=> https://github.com/alex-lairan/monads/pull/10

Add #inspect for Maybe monads and Either

=> https://github.com/alex-lairan/monads/pull/11 => https://github.com/alex-lairan/monads/pull/12 => https://github.com/alex-lairan/monads/pull/13

Add a CI

=> https://github.com/alex-lairan/monads/pull/15 => https://github.com/alex-lairan/monads/pull/17 => https://github.com/alex-lairan/monads/pull/18

Fix Block type introspection by using a proc

=> https://github.com/alex-lairan/monads/pull/25

Maybe monad should be close to Haskell or Scala's API => https://github.com/alex-lairan/monads/pull/2

Add methods: to_s, inspect: for easy-to-read nothing?, just?: instead of failure? and success? and remove following methods:

failure, success?: due to the above reasons. #== is implemented for each Just and Nothing and remove Maybe's => https://github.com/alex-lairan/monads/pull/3

Remove remained old 'equal?' methods in Nothing => https://github.com/alex-lairan/monads/pull/4