- document makefile flags [INSTALL_* for instance]
- document PK build flags
- merge PKCS #1 v1.5 back in, document changes to rsa_encrypt and rsa_sign

for v1.16
- Add ECC double-mult-add to plugin and make optional accelerator for baseline and MECC_FP [two goals]
- add X9.63 IES
- add CPP macros like OpenSSL has for ASN1 (e.g. encode/decode functions, etc) shameless ripoff :-)