fixed frozen windows executable issue

[gabknight]

addressed issue #399

• added freeze_support function call to reconst_*_parallel examples

I tried to make examples appear clear on the web page. What do you think?

@Garyfallidis Is this fixes the issue #399?

[Garyfallidis]

@gabknight here you only correct the parallel tutorials. But there are other tutorials that use parallel too. Do you see of a more generic way to protect ourselves from this problem?

[gabknight]

I was not aware of this issue, and didn't find a more generic way on the web. I don't have a windows system to reproduce the bug, which makes it hard to try-out pieces of code.

I removed parallel=True in reconst_csd.py and tracking_quick_start.py examples. Since there is the example reconst_csd_parallel.py, it should be parallel=False in reconst_csd.py. It would have been good to have parallel=True in tracking_quick_start.py. Nevertheless, users will notice the parallel arguments in peaks_from_model fct call.

[Garyfallidis]

Okay, cool. Let me think of this for a couple of days and then I will rather make a PR on top of yours or merge. Keep it up!

[Garyfallidis]

Hi sorry for taking time to give you feedback about this PR. I think the best way forward is to add an if name == 'main' even in the quick start tutorial doc/examples/tracking_quick_start.py and call the freeze_support. It's better to work properly rather than being pretty. Make the change please and will merge. Thx!

[Garyfallidis]

Thx Gab!