[mod_auth_openid] simplify cookbook logic. discourage use of vulnerable older versions
[mod_auth_openid] fix attribute naming and add create_if_missing
[mod_auth_openid] new versions use autogen.sh
[mod_auth_openid] add checksum to libopkele
[mod_auth_openid] update readme
Merge pull request #42 from bbg-cookbooks/bluebox-openid

[COOK-2296] simplify cookbook logic. discourage use of vulnerable older versions