Release 4.0.0

4.0.0

Major Changes

1. Implemented null safety
2. Jiffy cloning

   var jiffy1 = Jiffy();
   var jiffy2 = jiffy1.clone();
   // or 
   var jiffy1 = Jiffy();
   var jiffy2 = Jiffy(jiffy1);

3. Bug fix diff() function
4. All methods return Jiffy, except utc() and local() functions
5. Added Persian fa locale contributed by mozaffari
6. Added Norwegian nb locale contributed by Yilmaz Guleryuz
7. Added de_DE mapping locale contributed by Sebastian Rutofski
8. Fixed minor locale bugs

What's Changed

• added Norwegian Bokmål (nb) language by @zeusbaba in #63
• add mapping for 'de_DE' locale by @SebRut in #71
• Added Persian locale by @mozaffari in #88
• Fix diff function by @jama5262 in #91
• All methods return jiffy and add Jiffy cloning by @jama5262 in #92
• Implement null safety by @jama5262 in #93
• Update locale functionality by @jama5262 in #99
• Release version 4.0.0 to master by @jama5262 in #100

New Contributors

• @zeusbaba made their first contribution in #63
• @SebRut made their first contribution in #71
• @mozaffari made their first contribution in #88

Full Changelog: v3.0.1...v4.0.0