Support for Excon (and other libs)

[johnnyshields]

Would you accept a PR which adds the following:

Excon.defaults[:ssl_ca_file] = NetHttpSslFix::LOCAL_CA_FILE if defined?(Excon)

(Possibly consider renaming this lib to ruby_ssl_fix)

Ruby has a bazillion HTTP interaction libraries--Faraday, Excon, HTTPClient, etc. (since the std lib Net::HTTP API is not so good many people have decided to reinvent the wheel) and they all fall victim to a similar problem.

[chrisdpeters]

I am going back and forth on this. I initially set out just to fix Net::HTTP, but I can see the value in using this same package for other libraries.

I guess having a few extra ifs in the gem's initialization wouldn't hurt much.

I'd probably rename the gem to ssl_fix.