Bump version for pub.dev release (#15)

* Fixing deprecated linters and optional params

* Add constants and fix scalePatterns issue

* Apply dart formatting

* Bump version for release

CHANGELOG.md

@@ -1,15 +1,20 @@
 # Changes
 
+## [0.2.5] - Scale and pitch subtraction fixes
+
+- Fix issue with scale and mode name conflicts (@beattizzle)
+- Fix pitch subtraction (@EParisot)
+
 ## [0.2.4] - Null safety
 
-* Support for null safety (@canastro and @PatrickWulfe)
-* add get helmholtzName to Pitch class (@schilken)
-* Added comments to interval static fields (@miechoo)
+- Support for null safety (@canastro and @PatrickWulfe)
+- add get helmholtzName to Pitch class (@schilken)
+- Added comments to interval static fields (@miechoo)
 
 ## [0.0.2] - Dart 2 / Flutter compatibility
 
-* Updated for Flutter and Dart 2 compatibility.
+- Updated for Flutter and Dart 2 compatibility.
 
 ## [0.0.1] - Initial release
 
-* Initial release.
+- Initial release.

pubspec.yaml

@@ -1,5 +1,5 @@
 name: tonic
-version: 0.2.4
+version: 0.2.5
 
 description: >
   Classes and methods for representing and manipulating concepts from music theory:
@@ -9,7 +9,7 @@ repository: https://github.com/osteele/dart-tonic
 documentation: https://pub.dev/documentation/tonic/latest/
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: ">=2.12.0 <3.0.0"
 
 dependencies:
   collection: ^1.15.0