normalize-package-data@0.2.5

This bumps normalize-package-data to 0.2.5 so we can use the new feature for homepage guessing (https://github.com/meryn/normalize-package-data/issues/15) in npm soon 

0.2.5 also warns for usage of node-core module names

https://github.com/meryn/normalize-package-data/pull/36