yeoman/generator-angular — pull request #426 by xaka (2013-10-30 18:56:44+00:00)
Title: Always use random port number for livereload

If you have more than 1 application generated by yeoman, they all share the same livereload port that makes it difficult to run them simultaneously without modifying Gruntfile. Listening on zero-port is a pretty common solution to ask OS for a random port number and it's cross-platform as well. Let's make user's life easier!