Log Message:
Update hiredis to 0.13.1

### 0.13.1 - May 03, 2015

This is a bug fix release.
The new `reconnect` method introduced new struct members, which clashed with \ 
pre-defined names in pre-C99 code.
Another commit forced C99 compilation just to make it work, but of course this \ 
is not desirable for outside projects.
Other non-C99 code can now use hiredis as usual again.
Sorry for the inconvenience.

* Fix memory leak in async reply handling (Salvatore Sanfilippo)
* Rename struct member to avoid name clash with pre-c99 code (Alex Balashov, ncopa)

### 0.13.0 - April 16, 2015

This release adds a minimal Windows compatibility layer.
The parser, standalone since v0.12.0, can now be compiled on Windows
(and thus used in other client libraries as well)

* Windows compatibility layer for parser code (tzickel)
* Properly escape data printed to PKGCONF file (Dan Skorupski)
* Fix tests when assert() undefined (Keith Bennett, Matt Stancliff)
* Implement a reconnect method for the client context, this changes the \ 
structure of `redisContext` (Aaron Bedra)

### 0.12.1 - January 26, 2015

* Fix `make install`: DESTDIR support, install all required files, install \ 
PKGCONF in proper location
* Fix `make test` as 32 bit build on 64 bit platform

### 0.12.0 - January 22, 2015

* Add optional KeepAlive support
* Try again on EINTR errors
* Add libuv adapter
* Add IPv6 support
* Remove possiblity of multiple close on same fd
* Add ability to bind source address on connect
* Add redisConnectFd() and redisFreeKeepFd()
* Fix getaddrinfo() memory leak
* Free string if it is unused (fixes memory leak)
* Improve redisAppendCommandArgv performance 2.5x
* Add support for SO_REUSEADDR
* Fix redisvFormatCommand format parsing
* Add GLib 2.0 adapter
* Refactor reading code into read.c
* Fix errno error buffers to not clobber errors
* Generate pkgconf during build
* Silence _BSD_SOURCE warnings
* Improve digit counting for multibulk creation