Better logging with joblib.Parallel

[olliethomas]

current output

[Parallel(n_jobs=1)]: Using backend SequentialBackend with 1 concurrent workers.
[Parallel(n_jobs=1)]: Done   1 out of   1 | elapsed:    4.0s remaining:    0.0s
[Parallel(n_jobs=1)]: Done   2 out of   2 | elapsed:    7.2s remaining:    0.0s
[Parallel(n_jobs=1)]: Done   3 out of   3 | elapsed:   10.9s remaining:    0.0s
[Parallel(n_jobs=1)]: Done   4 out of   4 | elapsed:   15.3s remaining:    0.0s
[Parallel(n_jobs=1)]: Done   5 out of   5 | elapsed:   18.6s remaining:    0.0s
[Parallel(n_jobs=1)]: Done   6 out of   6 | elapsed:   22.2s remaining:    0.0s
[Parallel(n_jobs=1)]: Done   7 out of   7 | elapsed:   22.2s remaining:    0.0s
[Parallel(n_jobs=1)]: Done   8 out of   8 | elapsed:   22.2s remaining:    0.0s
[Parallel(n_jobs=1)]: Done   9 out of   9 | elapsed:   22.3s remaining:    0.0s

It must be possible to populate "out of n' and an estimate of remaining time