Support extensionless files
Support extensionless files

Exception thrown sending [] to nil

EdZava/Squirrel.Mac,Squirrel/Squirrel.Mac,emiscience/Squirrel.Mac,EdZava/Squirrel.Mac,Squirrel/Squirrel.Mac,emiscience/Squirrel.Mac,EdZava/Squirrel.Mac,Squirrel/Squirrel.Mac,emiscience/Squirrel.Mac