Add ci_mode to toggle download progress

[mkg20001]

Ref #823

[AndreMiras]

Great work! Same comment as kivy/python-for-android#1727 (comment) could you review/address? 🙏

[mkg20001]

Noticed that the unzip command still spams

Would anybody mind looking into that?

[AndreMiras]

Merged thanks!
Regarding the extraction command I think it comes from here https://github.com/kivy/python-for-android/blob/6660b9e/pythonforandroid/recipe.py#L405 but I haven't verified yet.
Basically tar -tf the -t flag is the verbose part, see man page:

List the contents of an archive. Arguments are optional. When given, they specify the names of the members to list.

But let's keep it for another story so I'm merging your PR which already is an improvement. Thanks for making a commit amend/squash by the way, I also like clean commit log 😄

[mkg20001]

Could you merge kivy/python-for-android#1727 as well, please?

[AndreMiras]

Yes but for kivy/python-for-android#1727 to make sense we need the .travis.yml update as well, do you mind making the change to the PR? 🙏