updated PEPC revision to rev4382
excluded informational output during initialization phase if it is not available
restored some part of 39b2d3 that did not find its way into the pepc-svn, yet
some cleanup to f4a638
fixed typo
now fianlly really fixed the typos (hopefully)
disabled pepc test for now since Jenkins does not have a threadsafe MPI installation
pepc test is now really skipped in case of insufficient threading support of MPI