OmpSum: add optimized sum() routine (2x of numpy's speed)
Revert "Waveform: add code to allow selection of non-spinning T4 approximant"

This reverts commit 2c527d1731b35c2ad7946050cea89d0c360cb91c.
ompsum: beautify code
ompsum: compile without -Ofast but with avx
ompsum: add routines to compute OverlapMaxing, expi, conj
Triton: check python user input for validity before we use it
Triton: add Join() function
add Harald Pfeiffer's hybridization scripts
use function based spline interface in hybridization

the object based one is very slow and also seems to run out of memory. I
suspect python code.
re-import overlap scripts. Having them in subversion is just too
cumbersome
add current testing script to compare to Ilana's results
ompsum: add omprect function
ompsum: compute dhdh in OverlapMaxing
Use C code to speed up overlap computation
fix computating of GW phase from number of orbits
fix amount of data dropped at beginning of NR waveform
be more carful selecting hybridization interval based on frequencies
Interpolate TRIAL and REFERENCE on common interval after aligning at

peak amplitude. Make timestep small enough to resolve 8192Hz.
shift PN frequency to end a t=0
use numpy's spline interpolation rather than PyGW's

the later seems to be slower and/or use more memory