Removed CHANGES.SSLeay
Udpate README to be current.
Updated fignerprints.txt to list only current release signers and
to explain that is what it's used for.
Removed the following:
c-indentation.el -- doesn't go with our coding style
openssl-shared.txt -- old info about shared library aides
openssl.txt -- old info about X509v3 extension support/syntax
ssleay.txt -- old info about OpenSSL's predecessor, back when
programmers coded on COBOL sheets by candlelight
Reviewed-by: Richard Levitte <levitte@openssl.org>