Update NOTICE file to include licensing information for the Closure Linter.

Also update the NOTICE file to keep projects sorted alphabetically.
Add Closure Linter as a dependency and provide build rules to lint files.
Fix minor JS style problems.
Merge pull request #28 from nicksay/lint

Add Closure Linter as a dependency and provide build rules to lint files.
Merge pull request #29 from nicksay/fix-style

Fix minor JS style problems.