Make it possible to call ramsurf without a FILE

* A C structure is used instead.
* Lower the threshold level of ramcmp
Split C version of ramsurf into two parts

* one part for the library
* one part for the structure filling
Use autotools for the build system

cleaner, easier. parallel validation for free
Improve packaging

* install ramsurflib.a on its own
* install ramsurf.h
* document ram format in the readme
* document ramsurf.h
Remove unofficial water attenuation extension
Optimize the sequential version of solve

* loop peeling + fusion + scalarization
* now, sequential version runs faster than vectorized one!
Make it possible to passe a NULL pointer as tl_line
Turn some array of complex into array of floats
Manage all allocations using a scratchpad memory

also remove references to SSE as they are not longer beneficial.
Suppress temporary array in solve
Use a C structure instead of a FILE to store ramsurflib output

ramsurf.c is in charge of turning it into FORTRAN format
Fix illegal memory access and bad memory management in profile

Thxs to valgrind!