Merge GPlugin branch

[Bjoern Voigt]

Thank you Tomasz! I added your openSUSE 13.2 repository from build
service and installed the GPlugin packages. Pidgin compiles and runs
without problems (with the plugins and accounts I use).

Greetings,
Björn

Tomasz Wasilczyk wrote:
> I have prepared GPlugin packages for various distributions *and*
> win32. Haven't tested binaries yet, but Pidgin build (at least, some
> configurations) goes fine. Feel free to grab rpms and debs from my
> repos [1].
>
> Unfortunately, some builds [2] [3] remains broken after the merge.
> Whoever feels responsible for the break - please fix it! It would also
> be nice to fix newly introduced warnings.
>
> A notice for GSoC students: always check CI when committing/merging to
> master branch!
>
> Tomek
>
> [1] https://build.opensuse.org/project/show/home:tomkiewicz:pidgin
> [2] https://www.guifications.org/jenkins/view/Pidgin/job/pidgin-win32-gtk2/
> [3] https://www.guifications.org/jenkins/view/Pidgin/job/pidgin-fedora-amd64-default-gtk3/