pepper-1.1.3

• repaired dealing with uris in pepper workflow description, a relative path now can be used with './a/b/c' and an absolute path can be used with
  'file:/c:/a/b/c' or 'file:///c:/a/b/c' (for windows) and 'file:/a/b/c' or 'file:///a/b/c' (for linux and mac)
• status message of progress each 20 seconds, with total progress and progress of each document in each pepper module
• added a better dealing with pepper-module tests when calling testStart(), now the method importCorpusStructure() in case of the fixture
  is an importer will be called
• class PepperModuleTestException was added to mark, that an exception occured in the user defined tests
• added method isFileToImport(URI) to PepperImporter, this method is a callback, to check if a file shall be imported, in case of the file extension is not enough