another follow up for 5ad518afd2. Allow use of OutputDirectory in scripts

Author: alexbruy

python/plugins/processing/script/ScriptAlgorithm.py

@@ -49,6 +49,7 @@
 from processing.outputs.OutputString import OutputString
 from processing.outputs.OutputHTML import OutputHTML
 from processing.outputs.OutputFile import OutputFile
+from processing.outputs.OutputDirectory import OutputDirectory
 from processing.outputs.OutputFactory import OutputFactory
 from processing.script.WrongScriptException import WrongScriptException
 
@@ -204,6 +205,8 @@ def processParameterLine(self, line):
             out = OutputHTML()
         elif tokens[1].lower().strip().startswith('output file'):
             out = OutputFile()
+        elif tokens[1].lower().strip().startswith('output directory'):
+            out = OutputDirectory()
         elif tokens[1].lower().strip().startswith('output number'):
             out = OutputNumber()
         elif tokens[1].lower().strip().startswith('output string'):