fix a packaging botch whereby the file of random numbers was not installed,
and a reference to the build directory was embedded in the executables.
now the regression tests run to completion:
Running ex-dep:
Running ex-ham7a:
Running ex-ham7b:
Running ex-ldpc-encode:
Running ex-ldpc36-1000a:
Running ex-ldpc36-5000a:
Running ex-ldpcvar-5000a:
Running ex-wrong-model:
155c155
< Bit error rate (on message bits only): 1.320e-02
---
> Bit error rate (on message bits only): 1.299e-02
