bazel 0.2.2

Bazel support for Dart

0.2.2

• Update to rules dart 0.2.2 with the latest dev sdk

0.2.0

• Refactor of rules_dart with a smaller public surface area of skylark rules
• Doc improvements
• More friendly error handling
• Added check for analyzer ignores
• Improved discovery of web targets

0.1.1

• Moved default bazel command to subcommand bazel init
• Added bazel serve command.
• Updated rules_dart to 0.1.1.
• Generally improved CLI behavior with incorrect flags.