only eager-load files that match /app/chewy/**/*_index.rb
Revert "only eager-load files that match /app/chewy/**/*_index.rb"

This reverts commit 7fd4f0645ff3cc881b43d9f1c3d6b189a213048f.
use require_dependency when eager loading files in /app/chewy
Merge pull request #41 from musicglue/require

eager_load_chewy! conflicts with rails autoloading