Force SSLv3 when "OpenSSL 0.9.8r 8 Feb 2011" is detected

It looks like the recent update to patch heartbleed broke https interaction for some versions of OpenSSL, specifically the version on Mavericks. To see this issue in action try this with the system version of ruby:

```
irb
> require 'open-uri'
 => true
> open('https://raw.githubusercontent.com/luisdelarosa/AFRaptureXMLRequestOperation/9800263d87304d0cda5e8b6afbe702e1dab55392/Test.spec')
OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=SSLv2/v3 read server hello A: (null)
...
```

This patch forces SSLv3 when the specific version of OpenSSL is found.

I've also included a change to the travis build that will fix the current build issue.