opinion needed on feature/download

[Matúš Kukan]

Hi,

I've made some changes around 'make fetch', ./download, ./ooo.lst in
feature/download.
Files are downloaded by makefile now and it is supposed to work better.
There are still few issues though and I am not sure whether to work on
them or it's going to be thrown away because it's ugly.
So, any feedback appreciated.

For more details, see also
<https://bugs.freedesktop.org/show_bug.cgi?id=56131> "Download only
the needed 3rd party source tarballs"
<https://gerrit.libreoffice.org/#/c/1088/> "add --with-all-tarballs
option to download all tarballs unconditionally"

Thanks,
Matus