ignore .idea folder
Added OPENSSL_config declaration
modified changelog
Fixed up a few issues
Merge pull request #1120 from alex/pr/1119

Add two new bindings
Documentation and interfaces for serialization to RSA*Numbers representations.
change names of key -> numbers interfaces
change to sub-interface idea
backend specific RSA*Key implementation for OpenSSL
remove skip in serialization tests until we have a backend that needs it
get numbers from loaded keys in numbers test
modify rsa.RSAPrivateKey to build old style key from numbers