Bump package version to 1.0.0

Author: gonuit

example/pubspec.lock

@@ -49,7 +49,7 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "1.0.0-nullsafety.1"
+    version: "1.0.0"
   fake_async:
     dependency: transitive
     description:
@@ -151,3 +151,4 @@ packages:
     version: "2.1.0"
 sdks:
   dart: ">=2.12.0-259.12.beta <3.0.0"
+  flutter: ">=1.16.0"

example/pubspec.yaml

@@ -2,7 +2,7 @@ name: example
 description: Custom refresh indicator example.
 publish_to: none
 
-version: 1.0.0+1
+version: 1.0.0
 
 environment:
   sdk: '>=2.12.0-259.12.beta <3.0.0'

pubspec.lock

@@ -144,3 +144,4 @@ packages:
     version: "2.1.0"
 sdks:
   dart: ">=2.12.0-0.0 <3.0.0"
+  flutter: ">=1.16.0"

pubspec.yaml

@@ -1,12 +1,13 @@
 name: custom_refresh_indicator
 description: Flutter Widget that make it easy to implement custom refresh indicator.
-version: 1.0.0-nullsafety.1
+version: 1.0.0
 repository: https://github.com/gonuit/flutter-custom-refresh-indicator
 issue_tracker: https://github.com/gonuit/flutter-custom-refresh-indicator/issues
 homepage: https://github.com/gonuit/flutter-custom-refresh-indicator
 
 environment:
-  sdk: '>=2.12.0-0 <3.0.0'
+  sdk: ">=2.12.0-0 <3.0.0"
+  flutter: ">=1.16.0"
 
 dependencies:
   flutter: