Begin work towards obeying 'Range' headers, thread the `opts` down to persistence layer.

services/filestore/app/coffee/FSPersistorManager.coffee

@@ -27,7 +27,7 @@ module.exports =
         return callback err
       @sendFile location, target, fsPath, callback
 
-  getFileStream: (location, name, _callback = (err, res)->) ->
+  getFileStream: (location, name, opts, _callback = (err, res)->) ->
     callback = (args...) ->
       _callback(args...)
       _callback = () ->

services/filestore/app/coffee/FileHandler.coffee

@@ -30,7 +30,7 @@ module.exports =
 			@_getConvertedFile bucket, key, opts, callback
 
 	_getStandardFile: (bucket, key, opts, callback)->
-		PersistorManager.getFileStream bucket, key, (err, fileStream)->
+		PersistorManager.getFileStream bucket, key, opts, (err, fileStream)->
 			if err?
 				logger.err  bucket:bucket, key:key, opts:opts, "error getting fileStream"
 			callback err, fileStream

services/filestore/app/coffee/S3PersistorManager.coffee

@@ -57,8 +57,8 @@ module.exports =
 				logger.err  bucketName:bucketName, key:key, fsPath:fsPath, err:err, "something went wrong writing stream to disk"
 				return callback(err)
 			@sendFile bucketName, key, fsPath, callback
-			
-	getFileStream: (bucketName, key, callback = (err, res)->)->
+
+	getFileStream: (bucketName, key, opts, callback = (err, res)->)->
 		callback = _.once callback
 		logger.log bucketName:bucketName, key:key, "getting file from s3"
 		s3Client = knox.createClient

services/filestore/test/unit/coffee/FileHandlerTests.coffee

@@ -104,7 +104,7 @@ describe "FileHandler", ->
 
 		beforeEach ->
 			@fileStream = {on:->}
-			@PersistorManager.getFileStream.callsArgWith(2, "err", @fileStream)
+			@PersistorManager.getFileStream.callsArgWith(3, "err", @fileStream)
 
 		it "should get the stream", (done)->
 			@handler.getFile @bucket, @key, null, =>