Update changelog [ci skip]

Author: yaauie

CHANGELOG.md

@@ -3,6 +3,11 @@
 * Added debug log sanitization (#428)
 * Added support for `pfadd`, `pfcount`, and `pfmerge` commands to support
   HyperLogLog (Redis 2.8.9, #432)
+* Added support for `bitpos` command (Redis 2.9.11, #412)
+* Added support for automatically reconnecting in forked child (#414)
+* Added MRI Ruby 2.1.0 to CI
+* Fix truncation of meaningful information in certain timeouts (#430)
+* Fix handling of connection retries that could result in retry loop (#415)
 
 # 3.0.7