Rearrange i18n Resource files into a directory

[sgk]

The "app/src/processing/app" directory became mess because there are
a lot of "Resources__.po" and "Resources__.properties" files for the
internationalization.

Moved the resource related files into a directory "i18n" under the
"app/src/processing/app" directory.

This is for developers only. No feature changed.

[sgk]

@cmaglie @ffissore @dcuartielles Sorry to ask to you directly.

I will appreciate if you can merge this pull request a little bit earlier. This will make it easier to manage the result of Transifex on Git. The last commit a6c6a71 is not required, but please include if it is not a problem (this can be done on Transifex if the POT file is up-to-date).

[cmaglie]

@sgk
do you have any suggestion to make transifex integration smoother?

[sgk]

@cmaglie

Thank you!

Do you mean Transifex integration like my recent commit 3dd601f ? This commit is a little bit large because it adds the Python "reqeusts" library. The core of the commit is "i18n/python/pull.py". This retrieves the translation from Transifex.
https://github.com/sgk/Arduino/blob/transifex/app/src/processing/app/i18n/python/pull.py

Please read the instruction:
https://github.com/sgk/Arduino/blob/transifex/app/src/processing/app/i18n/README.md

Currently, the script can only retrieve the translation from Transifex. I will try to write another script to "push" local file to Transifex.

[cmaglie]

Cool, I didn't noticed the pull script, that answer part of my question.

My main concern is: how can I push new strings into transifex? The 1.5.x series has a bunch of new strings to be translated.

[sgk]

I think it can be done by first incorporate the new strings into "*.po" files by using "./update.sh", run "./pull.sh", and then "push" the files to Transifex. I will try to write a script to "push".

[sgk]

I added a "./push.sh" script in the commit 4d94310.

https://github.com/sgk/Arduino/tree/transifex/app/src/processing/app/i18n

[sgk]

I have submitted a pull request for this. See #1312. Please merge if you like it.

You should be able to push the new strings into Transifex as follows.

% ./update.sh -a
% ./pull.sh -a
% (check the result before push)
% ./push.sh -a

This may require a project administrator permission for Transifex.