Fix a few Pub health issues (flutter#15)

* Add badges

* Prep for release + longer description

* Update CHANGELOG.md

Author: mit-mit

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 1.0.5
+
+* Update package metadata & add `example/` folder
+
 ## 1.0.4
 
 * Now requires Dart 2.

README.md

@@ -1,3 +1,6 @@
+[![Pub Package](https://img.shields.io/pub/v/boolean_selector.svg)](https://pub.dev/packages/boolean_selector)
+[![Build Status](https://travis-ci.org/dart-lang/boolean_selector.svg?branch=master)](https://travis-ci.org/dart-lang/boolean_selector)
+
 The `boolean_selector` package defines a simple and flexible syntax for boolean
 expressions. It can be used for filtering based on user-defined expressions. For
 example, the [`test`][test] package uses boolean selectors to allow users to

pubspec.yaml

@@ -1,6 +1,6 @@
 name: boolean_selector
-version: 1.0.5-dev
-description: A flexible syntax for boolean expressions.
+version: 1.0.5
+description: A flexible syntax for boolean expressions, based on a simplified version of Dart's expression syntax.
 author: Dart Team <[email protected]>
 homepage: https://github.com/dart-lang/boolean_selector