Allow the null-safe version of json_annotation

.travis.yml

@@ -5,7 +5,7 @@ dart:
   - dev
 
 dart_task:
-- dartanalyzer: --fatal-infos --fatal-warnings .
+- dartanalyzer: --fatal-infos .
 - test
 
 matrix:

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 0.1.1+3
+
+- Allow `package:json_annotation` `'>=1.0.0 <5.0.0'`.
+
 ## 0.1.1+2
 
 - Support the latest version of `package:json_annotation`.

pubspec.yaml

@@ -1,15 +1,15 @@
 name: timing
-version: 0.1.1+3-dev
+version: 0.1.1+3
 description: >-
   A simple package for tracking the performance of synchronous and asynchronous
   actions.
-homepage: https://github.com/dart-lang/timing
+repository: https://github.com/dart-lang/timing
 
 environment:
   sdk: ">=2.2.0 <3.0.0"
 
 dependencies:
-  json_annotation: '>=1.0.0 <4.0.0'
+  json_annotation: '>=1.0.0 <5.0.0'
 
 dev_dependencies:
   build_runner: ^1.0.0