Download tarballs instead of use git

[piranna]

Use direct download of tarballs instead of download latests source code using git. For QtBase the url is http://download.qt.io/official_releases/qt/5.7/5.7.0/submodules/qtbase-opensource-src-5.7.0.tar.gz, maybe we should do first some trials with previous versions due to #13.

[mitsukaki]

Are you referring to our build scripts? To download tarballs instead of using git?

[piranna]

Are you referring to our build scripts? To download tarballs instead of
using git?

Yes, this would remove one dependency (git), make download faster (only
latests files without the changes history) and more important use fixed and
tested versions instead of latest master branch, so environment is easily
replicable and testeable.

[Coretool]

We can close this, tars are in use now !

[piranna]

:-D