update version tag and changelog

CHANGELOG.md

@@ -1,3 +1,6 @@
+# 0.2.0
+* Port to Null-Safety
+
 # 0.1.2+1
 * Fix: back button event not automatically deferred to child back button dispatchers
 

example/pubspec.lock

@@ -7,14 +7,14 @@ packages:
       path: ".."
       relative: true
     source: path
-    version: "1.0.0+2"
+    version: "0.2.0"
   async:
     dependency: transitive
     description:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.8.2"
+    version: "2.8.1"
   boolean_selector:
     dependency: transitive
     description:
@@ -80,7 +80,7 @@ packages:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.11"
+    version: "0.12.10"
   meta:
     dependency: transitive
     description:
@@ -155,7 +155,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.3"
+    version: "0.4.2"
   typed_data:
     dependency: transitive
     description:

pubspec.lock

@@ -7,7 +7,7 @@ packages:
       name: async
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "2.8.2"
+    version: "2.8.1"
   boolean_selector:
     dependency: transitive
     description:
@@ -66,7 +66,7 @@ packages:
       name: matcher
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.12.11"
+    version: "0.12.10"
   meta:
     dependency: transitive
     description:
@@ -134,7 +134,7 @@ packages:
       name: test_api
       url: "https://pub.dartlang.org"
     source: hosted
-    version: "0.4.3"
+    version: "0.4.2"
   typed_data:
     dependency: transitive
     description:

pubspec.yaml

@@ -1,6 +1,6 @@
 name: advanced_navigator
 description: Flutter's Navigator 2.0 as one easy-to-use widget with full page history manipulation operations, simplified pop event delegation and powerful nesting. 
-version: 1.0.0+2
+version: 0.2.0
 repository: https://github.com/LucasAschenbach/advanced_navigator
 
 environment: