mapiproxy/fault_util: Print out Samba and OpenChange versions in OC_ABORT

This also introduce a nice feature (kind of) of us being able
to "see" what is the Samba and OpenChange versions in CoreDump.

Signed-off-by: Kamen Mazdrashki <kmazdrashki@zentyal.com>
Merge pull request #9 from kamenim/kamenim/stability-fixes

mapiproxy/fault_util: Print out Samba and OpenChange versions in OC_ABORT