[550536] Split support and contributing

Furthermore some minor improvement and clen-ups.

Bug: https://bugs.eclipse.org/bugs/show_bug.cgi?id=550536
Change-Id: Id1921dc8a8f753ac9e6393159523768f340305f8
Signed-off-by: Alois Zoitl <alois.zoitl@gmx.at>
4 files changed