[16] Fix installation of 2.6+ from source

Here's the changelog:

https://raw.github.com/antirez/redis/2.6/00-RELEASENOTES

    The following redis.conf and CONFIG GET / SET parameters changed:
    
        * hash-max-zipmap-entries, now replaced by hash-max-ziplist-entries
        * hash-max-zipmap-value, now replaced by hash-max-ziplist-value
        * glueoutputbuf option was now completely removed (was deprecated)