1. add empty function to load private key into SSL context
2. add empty function to load certification into SSL context
3. add function to load RSA private key
1. add openssl 'new' and 'free' function
2. add clear unused variate to void warning to appear when compile
3. add internal function 'X509_new' to take the place of 'sk_X509_NAME_new_null' function whitch is openssl stack function