Don't crash when running assets:precompile due to file not founds, like:...

... public/assets/node_modules/eve/package.json.

When running rake assets:precompile, the files are copied to public/assets after get the hash added to the filename, so package.json is not found, instead there's: package-ff1fdbca93176ffaabcec09189d4a6b4.json

I'm not sure if this is the right fix, but at least, I can run assets:precompile.