moved some time consuming Ptilde debug output to debug_level larger 2 and adjusted some other debug output
Merge pull request #204 from urbach/AdjustDebugOutput

moved some time consuming Ptilde debug output to debug_level larger 2...
this is a workaround for the endian problem in BG/Q, see issue 206
added a safety measure for definition of _POSIX_C_SOURCE
fixed correlator normalisation with respect to changed inversion call in operator struct
Merge pull request #209 from urbach/FixOnlineNormalisation

fixed correlator normalisation with respect to changed inversion call in...
moved time.h inclusion below the POSIX def
Merge pull request #208 from urbach/fixPOSIXbug

this is a workaround for the endian problem in BG/Q, see issue 206
Merge remote-tracking branch 'upstream/master' into InterleavedNDTwistedClover