Safe discover of redis version

[fabsi88]

My original pull request worked well for redis version 2.6.12 on Windows 8.1 (my test system) but does not work on my production site (redis version 2.2.12 and ubuntu 12.04.4 LTS). On Windows 8.1 and Redis 2.6.12 lines[0] equals "#Server" (like the doc - http://redis.io/commands/info) but on production site lines[0] contains the version.
So I think this is the better solution for retrieving the redis version independent of OS-/Redis-Version.

[s-ludwig]

OK, good to know. Does the 2.2 server have sections at all (i.e. "Clients", "Memory", ...)? Or does it simply mix everything together as one list?

[fabsi88]

Thanks for merge. No, there are no sections. Just a list of all properties. Refering to the release notes of redis (https://raw.github.com/antirez/redis/2.6/00-RELEASENOTES) sections and empty lines are a new feature in 2.6.