Fixed P3M FFT.
Renamed package scafacos-fcs to scafacos.
fix renaming of scafacos-fcs to scafacos
interface: fix failing of fcs_set_parameters for wrong parameters

Conflicts:
	src/fcs_common.c
Added fna_water testcase with ~1e6 charges, removed some outdated files.
Moved Error Estimates into separate namespaces.
Added option "--with-internal-fftw" to use the internal FFTW.
scafacos_test: fix duplication with -d parameter
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
added missing file of prev. commit
fixed deadlock in test_pepc
Increased verbosity of some tests.
Let the test suite use the improved parallel test suite.