Merge pull request #10 from d0/master

Perform a length check before CRYPTO_memcmp to avoid out-of-bounds reads
added coverty scan badge
fixed wrong usage of CRYPTO_memcmp
fixed import of CA keys

fixes regression from a05933a6521aede7424f6353b9d5570d78801049
use bootswatch theme for better mobile viewing
use current year for date of copyright
added github ribbon
fixed NIDs in swig for a non patched OpenSSL
fixed NIDs for (non-) patched OpenSSL (again)