Issue #21: ensure we install all headers
Issue #22: don't assume implicit (long long) -> mpz_class conversion
Issue #23: "^[a-zA-Z0-9]+$" is broken for FPE, fix it and simplify the cycle-walking implementation
Issue #22: comment on where magic numbers came from
Merge pull request #24 from uProxy/kpdyer-bugfixes

Bugfixes for regressions in 0.1.3