Merge pull request #280 from vzctl/master

Adding a simple ruby driver
Added Intercom
Merge pull request #281 from ahug/master

Added Intercom
Added Less and Prefix-Free
Merge pull request #282 from ahug/master

Added Less & Prefix-Free
Add open timeout for the ruby driver

On linux if tcp connection can't be opened and there is no reply
because traffic is filtered or the host is down, it takes 127
seconds to time out by default: 6 syn retries (63s) + 64s of waiting