Increase single file upload limit

[Display Name]

Please increase per-file upload limit, which is currently set to 200MiB. This is desired for example when distributing Windows binaries for GPL software. The corresponding sources must include redistributed libraries. This is different from Unixes where they usually are system libraries and software is distributed as packages alongside them anyway.

WinUtils and Pidgin++ are two sample applications that need big source bundles [1-2]. Because Pidgin++ currently exceeds the size limit, it needs artificial code to split them [3]. However even binaries may exceed this limit, for example Qt from MSYS2 is about 620MiB [4]. There are probably other cases. I suggest a limit of 1GiB.

[1] https://launchpad.net/winutils
[2] https://launchpad.net/pidgin++
[3] https://github.com/renatosilva/pidgin-plus/blob/8eb9387/source/pidgin/win32/generate_source_bundles.sh#L51-L55
[4] http://repo.msys2.org/mingw/x86_64/mingw-w64-x86_64-qt5-5.5.0-1-any.pkg.tar.xz

[Launchpad QA Bot (lpqabot)]

Fixed in stable r17660 (http://bazaar.launchpad.net/~launchpad-pqm/launchpad/stable/revision/17660) by a commit, but not testable.