Huge commit.

- Add search command
- Cache clean now clears the registry cache
- Fix error when accessing an unknown deep command in the cli
- Change from 'roaming' to 'path' in the config
- Change from 'canonicalPackage' to 'canonicalDir'
- Fix dev dependencies of nested packages being fetched
- Ignore invalid installed packages
- Various cache fixes and improvements
- Fix .bower.json being deleted if a package specified ignorables
- Use fstream instead of ncp to solve the EMFILE errors

lib/core/Project.js

@@ -366,7 +366,6 @@ Project.prototype._bootstrap = function (targets, resolved, incompatibles) {
     // Configure the manager and kick in the resolve process
     return this._manager
     .configure({
-        production: this._production,
         targets: targets,
         resolved: resolved,
         incompatibles: incompatibles,