implement kernels for 1dp-P2NFFT
fix build of 1dp-P2NFFT
fix definition of P2NFFT constants for long double precision
implement 1dp-P2NFFT kernels
work on 1dp-P2NFFT regularization
debugging of 1dp-P2NFFT
debuggingwq
ignore tmp latex files in doc/
PNFFT: init f and grad_f with zeros for ik-differentiation
1dp-P2NFFT: debugging, fix constant continuation in regularization
1dp-P2NFFT works
Merge branch 'p2nfft_1dp' into p2nfft_2dp

Conflicts:
	lib/p2nfft/kernels.c