minor improvements create private key directory (genkey) dump CSR (certify)

fix incorrect error handling when reading secret shares 

version bump to 1.17 

fixed incorrect order of hook_init() and hook_exit() 

version bump to v1.15 

fix key derivation for encrypted secret sharing added possiblity for custom splash screens

version bump to v1.13 

added support for randomized serial numbers 

fixed incorrect command line for key encryption 

support notbefore/notafter dates beyond 2050 support date format YYYYMMDDHHMMSS