Remove -dev.infinity in SDK constraint (#163)

Author: kevmoo

pubspec.yaml

@@ -1,12 +1,12 @@
 name: angular_components
-version: 0.7.0
+version: 0.7.1-dev
 description: >
   The official Material Design components for AngularDart. Used at Google
   in production apps.
 homepage: https://webdev.dartlang.org/components
 author: Dart Team <[email protected]>
 environment:
-  sdk: '>=1.24.0 <2.0.0-dev.infinity'
+  sdk: '>=1.24.0 <2.0.0'
 dependencies:
   angular: ^4.0.0
   angular_forms: ^1.0.0