arguments are file names of scripts to be executed before
Frida goes interactive.

- some #include <iostream>
- cmake: SOURCE signature was deprecated

Improved error message from xax_lex.
Added include's requested by g++-4.7.
arc'ed; broken: problem with unique_ptr.

for the first time run under valgrind, found and corrected a bug in the curve refinement routine, which is a very careless piece of coding

Imposing -Werror.
Got rid of warning from xax_lex.cpp (%option nounput)