Fix up settings schema and acceptance tests

test/acceptance/coffee/ExampleDocumentTests.coffee

@@ -6,6 +6,10 @@ ChildProcess = require "child_process"
 
 fixturePath = (path) -> __dirname + "/../fixtures/" + path
 
+try
+	fs.mkdirSync(fixturePath("tmp"))
+catch e
+
 convertToPng = (pdfPath, pngPath, callback = (error) ->) ->
 	convert = ChildProcess.exec "convert #{fixturePath(pdfPath)} #{fixturePath(pngPath)}"
 	convert.on "exit", () ->

test/acceptance/coffee/helpers/Client.coffee

@@ -1,11 +1,11 @@
 request = require "request"
 fs = require "fs"
-Settings = require "../../../../app/js/Settings"
+Settings = require "settings-sharelatex"
 
 host = "localhost"
 
 module.exports = Client =
-	host: Settings.externalUrl
+	host: Settings.apis.clsi.url
 
 	randomId: () ->
 		Math.random().toString(16).slice(2)