Updated version of python tools

[brey]

I have cleaned up and tested the python tools. The files are in /boututils /boutdata /pyGridGen and in /examples/elm-pb/Python. Hopefully people can use the tools now and I will try to keep developing them. A manual in tex file will be forthcoming soon.

[loeiten]

Hi brey

I accidently pulled some conflicting changes after you made this merge request (sorry about that). The changes I did was basically just to put parantheses around print statements in order to make the imports python 3 compatible.

I checked breifly through the merge request as I am a heavy user of python in BOUT++ myself, and I think it looks really good :).

I have a question though:
In tools/pylib/boutdata/collect.py, why would you like to remove the xguards options? In general I think it is a good idea to have the option to exclude the collection of the guard cells if one for example want to plot a profile.

[brey]

Hi loeiten,

it was not my intention to do that. Apparently for some reason the pull upstream master command didn't update my local collect.py file and the one from the fork/master was an old version. I don't know why this happened. I am trying to figure it out but I have no luck. Any ideas are welcome. Anyhow, I will merge your changes and adjust the routines to the latest version and issue a pull request again. Is that the proper way to proceed? (I am new to git)

[loeiten]

Hi again

No worries. As you may see from my little accident I'm quite new to git myself, and I found the need to read in the big git book: http://git-scm.com/book/en/v2. The book answered a lot of my questions. Unfortunately I do not know the proper way to proceed, but maybe the book knows.

Best