analytics - bump insight, supports OS/node/CLI version tracking

Per @sheerun's request: https://github.com/bower/bower/issues/1164#issuecomment-45727838

Insight 0.4's change: https://github.com/yeoman/insight/commit/1b24f9135a6b1ffa5ce7dfd80383d49facbbddb9

This will provide analytics like this: http://david-smith.org/iosversionstats/, which will allow the team to debug and consider legacy support. Unfortunately data will only be available going forward.