Consolidate & simplify local_file_for & dyn_local_file_for
Consolidate & simplify local_file_for & dyn_local_file_for

rstacruz/sinatra-assetpack,flywithmemsl/sinatra-assetpack,jwhitcraft/sinatra-assetpack,flywithmemsl/sinatra-assetpack,flywithmemsl/sinatra-assetpack,rstacruz/sinatra-assetpack,jwhitcraft/sinatra-assetpack,rstacruz/sinatra-assetpack,jwhitcraft/sinatra-assetpack