updates not printed out about simanneal HOT 4 OPEN

The frequency of printing is determined by the updates and steps properties. What does oa.steps and oa.updates give you?

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Somehow, the end="\r" in the print statement of the default update function seemed to prevent it from printing on my system (macOS mojave). Removing the end="\r' fixed the problem, at least for me.

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@Br1000
There is a known issue with PyCharm where it won't print properly with end='\r' but will print strings containing '\r' just fine.

@perrygeo
Commit 2e79630 added end='\r' but I don't think it is necessary since the string begins with '\r' anyway. Perhaps it could be changed to end='' to help out PyCharm users?

Also, the annealing process seems to be run twice (once by auto and then again, for real). This leads to output like:

Temperature Energy Accept Improve Elapsed Remaining
Temperature Energy Accept Improve Elapsed Remaining
7.30000 6801.84 5.60% 0.27% 0:00:11 0:00:00

If you were to change

    print(' Temperature        Energy    Accept   Improve     Elapsed   Remaining',
                      file=sys.stderr)

to

    print('\n Temperature        Energy    Accept   Improve     Elapsed   Remaining',
                  file=sys.stderr) 

then the output would be:

empty line
Temperature Energy Accept Improve Elapsed Remaining
4.90000 6801.84 4.60% 0.00% 0:00:03 -1:59:59
Temperature Energy Accept Improve Elapsed Remaining
4.90000 6845.62 6.81% 0.14% 0:00:09 0:00:00
which I think is a bit neater.

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@Iain-S sounds like a good solution. Would you mind creating a PR for it?

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