Add bower.json to watch list
Merge branch 'master' into topics/watch_bower

* master:
  Release 1.7.1.
  Separate source map updating in sourcefile
  Revert "Do os.platform() check only once."
  Do os.platform() check only once.
  Update pluginHelpers description in docs
  Refactor pluginHelpers block
  pluginHelpers default by regex before filename
  pluginHelpers default to first joinTo file instead of last
  fix #659
Centralize config files array
Run `bower install` on bower.json changes
Fix missed var rename isPluginsFile -> isPackageFile
Reload watcher after bower install
Merge branch 'topics/watch_bower' of https://github.com/brunch/brunch into topics/watch_bower

* 'topics/watch_bower' of https://github.com/brunch/brunch:
  Fix missed var rename isPluginsFile -> isPackageFile
Listen to close or finish fs stream events

Resolves #666
Merge pull request #665 from brunch/topics/watch_bower

Watch bower.json and run bower install
Concatenate JS files in main property of bower component in order.
Merge branch 'master' of github.com:brunch/brunch
Respect order.before in brunch config for bower stuff. Closes gh-632.
Release 1.7.2.
Display generated code instead of source code in identity maps. Closes gh-664.
Clarify default order
Config overrides
Docs for config overrides
Allow applying multiple config overrides
Merge pull request #675 from brunch/topics/overrides

Config overrides
Remove --production. Still not convinced it is common option. Brings more complexcity and confusion. -a production is ok