Refactor test_streaming_files_simple_multiple_mountpoints.py, animated output, no debug output from mail module and some renaming
Bugfix function wait_for_completed_transfer of module test_streaming_files_simple_multiple_mountpoints.py, to set timeout to infinite if it is None
Bugfix function log_copy_operation of module test_streaming_files_simple_multiple_mountpoints.py, to set timeout to infinite if it is None
Modify function wait_for_completed_transfer of module test_streaming_files_simple_multiple_mountpoints.py, for animation while it is waiting
Bugfix function log_copy_operation of module test_streaming_files_simple_multiple_mountpoints.py, fix OBOE when reading all written files
Modify function log_copy_operation of module test_streaming_files_simple_multiple_mountpoints.py
    replace parameter log_file with log_dir, to specify a directory for log output rather than a file
    rename parameter check with reading to clarify if files are written or being read
Modify function main of module test_streaming_files_simple_multiple_mountpoints.py
    Extract some functions for directory creation, animate output
    Remove written files automatically
Bugfix function log_copy_operation of module test_streaming_files_simple_multiple_mountpoints.py, fix table output
Update graphs in the result directory, that were wrong due to a bug in the  visualization script
Modify script vis_streaming_files_simple_multiple_mountpoints.py, several bugfixes and it can now automatically creat the graphics when called in the log directory
Delete individual graphs that were influenced by a bug in the visualization script
Update README after fixing the bug in the visualization script