Bring back Redis::Distributed.

This reverts commit c4ebeda.

Author: djanowski

CHANGELOG.md

@@ -4,8 +4,6 @@
 
 * Removed `Redis#[]` and `Redis#[]=` aliases.
 
-* Removed `Redis::Distributed`.
-
 * Added support for `CLIENT` commands. The lower-level client can be
   accessed via `Redis#_client`.
 

examples/dist_redis.rb

@@ -0,0 +1,43 @@
+require "redis"
+require "redis/distributed"
+
+r = Redis::Distributed.new %w[redis://localhost:6379 redis://localhost:6380 redis://localhost:6381 redis://localhost:6382]
+
+r.flushdb
+
+r['urmom'] = 'urmom'
+r['urdad'] = 'urdad'
+r['urmom1'] = 'urmom1'
+r['urdad1'] = 'urdad1'
+r['urmom2'] = 'urmom2'
+r['urdad2'] = 'urdad2'
+r['urmom3'] = 'urmom3'
+r['urdad3'] = 'urdad3'
+p r['urmom']
+p r['urdad']
+p r['urmom1']
+p r['urdad1']
+p r['urmom2']
+p r['urdad2']
+p r['urmom3']
+p r['urdad3']
+
+r.rpush 'listor', 'foo1'
+r.rpush 'listor', 'foo2'
+r.rpush 'listor', 'foo3'
+r.rpush 'listor', 'foo4'
+r.rpush 'listor', 'foo5'
+
+p r.rpop('listor')
+p r.rpop('listor')
+p r.rpop('listor')
+p r.rpop('listor')
+p r.rpop('listor')
+
+puts "key distribution:"
+
+r.ring.nodes.each do |node|
+  p [node.client, node.keys("*")]
+end
+r.flushdb
+p r.keys('*')