Merge devel:languages:misc/erlang. This is the current devel package, back then coolo didn't want to have another devel project (i.e. devel:languages:erlang).
Now the situation changed. Afterwards, I will do a change_devel request to this package and drop the one from devel:languages:misc.

p.s. Feel free to add me as the maintainer or you'll get some more reviews soon ;-)

- Use SPDX-style license (ErlPL-1.1)
- Merge changes from devel:languages:misc/erlang, which is still the
devel project for Factory.

- Avoid shipping libraries with licensing issues (see bnc#728667)
+ Neither ship 'diameter' source or binary and remove the corresponding
but useless man pages
+ The xmerl binary (library) is safe to ship, but not it's sources
(fixes bnc#776060)

- Add erlang-ppc.patch: Fix PPC architecture detection

- Simply use java-devel >= 1.6.0 as it expands to correct jdk on every
distribution
- Drop files with propriatery license (diameter and xmerl) (bnc#728667)