Twitter v1 api retiring on 5th March

The v1 api that ZendService\Twitter and Zend_Service_Twitter use is retiring soon after 5th March. It will still be available 5th March, but their "blackout tests" will mean it's unstable and shouldn't be relied on.

https://dev.twitter.com/blog/planning-for-api-v1-retirement

I suggest this component and ZF1's be upgraded to v1.1. I'll see what I can do regarding it, but can't guarantee yet that I'll commit to both ZF2 and ZF1 versions.