allow proxying of template images though filestore

services/filestore/app.coffee

@@ -74,6 +74,7 @@ app.put "/project/:project_id/file/:file_id", keyBuilder.userFileKey, fileContro
 app.del "/project/:project_id/file/:file_id", keyBuilder.userFileKey, fileController.deleteFile
 
 app.get  "/template/:template_id/v/:version/:format", keyBuilder.templateFileKey, fileController.getFile
+app.get  "/template/:template_id/v/:version/:format/:sub_type", keyBuilder.templateFileKey, fileController.getFile
 app.post "/template/:template_id/v/:version/:format", keyBuilder.templateFileKey, fileController.insertFile
 
 app.get "/heapdump", (req, res)->

services/filestore/app/coffee/FileConverter.coffee

@@ -40,7 +40,7 @@ module.exports =
 		args = "nice convert -flatten -background white -density 300 -define pdf:fit-page=#{width} #{sourcePath} -resize #{width} #{destPath}"
 		exec args, childProcessOpts, (err, stdout, stderr)->
 			if err?
-				logger.err err:err, stderr:stderr, sourcePath:sourcePath, "something went wrong converting file to preview"
+				logger.err err:err, stderr:stderr, sourcePath:sourcePath, "something went wrong converting file to thumbnail"
 			else
 				logger.log  sourcePath:sourcePath, destPath:destPath, "finished thumbnailing file"
 			callback(err, destPath)	

services/filestore/app/coffee/KeyBuilder.coffee

@@ -24,8 +24,8 @@ module.exports =
 		next()
 		
 	templateFileKey: (req, res, next)->
-		{template_id, format, version} = req.params
-		req.key = "#{template_id}/v/#{version}/#{format}"
+		{template_id, format, version, sub_type} = req.params
+		req.key = "#{template_id}/v/#{version}/#{format}/#{sub_type}"
 		req.bucket = settings.filestore.stores.template_files
 		req.version = version
 		opts = req.query