Remove <0.8.0 flutter version constraint

kieferlam · kieferlam · commit 9b3f7db4cd16 · 2018-09-08T17:59:47.000+01:00
diff --git a/pubspec.yaml b/pubspec.yaml
@@ -6,7 +6,7 @@ homepage: https://github.com/Sub6Resources/flutter_html
 
 environment:
   sdk: '>=1.19.0 <3.0.0'
-  flutter: '>=0.5.0 <0.8.0'
+  flutter: '>=0.5.0'
 
 dependencies:
   html: ^0.13.3
