Add test data and make rule for generating the prime list
Add copyright notice
Remove some old code
Improve tests for RQFT (long long version)
Change directory for plots
Add template for the number of small composites tested
Ignore directories for generated files
Set line colours
Add small programmes to check the RQFT on small inputs

There are two programmes, each in a long long and a GMP version.  The
programme "check_all_params" computes the QFT of all composite 5<=n<10000
and counts the number of non-witnesses.  "check_all_small_numbers" chooses
the parameters (b,c) mod n in a simple deterministic fashion and looks for
false positives.
Improve comments
Fix tests
Change the set of enabled tests
Make plot colours more printer friendly
Use a deterministic seed
Simplify and improve power_of_x_int
Fix number of multiplications in power_of_int_x
Ignore binaries
Add macro used for multiplying two numbers modulo n
Remove code for baillie-psw test
Extend readme