Lucaong Immutable Versions Save

Changes:

• Compatibility with Crystal 0.18

Changes:

• Fixes for Crystal 0.17 and named tuples

Changes:

• Fix for Crystal v0.16 (removal of Iterator#flatten broke Vector#each)

Changes:

• update syntax to Crystal 0.14.x

Changes:

• Improve performance of Vector#+

Changes:

• Immutable::Vector[1, 2, 3] and Immutable::Map[{ foo: 1, bar: 2 }] constructors

Changes:

• Performance improvements for transient structures

Changes

• Implement transient data structures

Changes:

• Add Immutable::Map#merge method
• Small optimization on Immutable::Vector.of

Changes:

• Add Immutable.from method to create nested structures