fix version check
fix 674561 -  linker flags in examples
suspend a warning if xmlsec is bootstrapped with autoconf 2.68+ (Roumen)
error in macro AM_C_PROTOTYPES (Roumen)
implement automake silent rules (Roumen)
spelling corrections (Mak Kolybabi)
adding support for DSA-SHA256, ECDSA-SHA1, ECDSA-SHA224, ECDSA-SHA256, ECDSA-SHA384, ECDSA-SHA512 (Mak Kolybabi)
use the calls the same way as OpenSSL does internally (based on patch from Mak Kolybabi)
fix array initializer (patch from Mak Kolybabi)
add missing md_ctrl to EVP_MD struct for DSA and ECDSA  (patch from Mak Kolybabi)
compatibility with pre-1.0.0 openssl
better openssl 1.0.x detection
remove unused declarations (Mak Kolybabi)
preparation for 1.2.19 release
docs rebuild
update tools
and one more docs rebuild
cleanup docs
disable ECDSA if needed (Daniel)
fix typo (fixed bug 695605)