[libsoup] (4 commits) Non-fast-forward update to branch wip/http2

[Carlos Garcia Campos <carlosgc src gnome org>]

The branch 'wip/http2' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  a770371... Add initial HTTP2 backend
  271453b... tests: fix http2 tests
  80c3bd2... session: create a new connection for preconnect requests th
  c906293... tests: allow to run the http2 tests from the test executabl

Commits added to the branch:

  1a1d29c... Add initial HTTP2 backend
  5e36ac4... tests: fix http2 tests
  684c468... session: create a new connection for preconnect requests th
  32dc906... tests: allow to run the http2 tests from the test executabl