Log Message:
Updated package to the newest version, 0.5.2. Changes include:

0.5.2 (2015-11-23)
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* Add OPENSSL_NO_SSL3 preprocessor flag to disable SSLv3 (thanks Jérémie
  Courrèges-Anglas).

0.5.1 (2015-05-27)
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* Fix META file for versions of OCaml older than 4.02.0 (thanks Anil
  Madhavapeddy, closes #20).

0.5.0 (2015-05-18)
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* Allow to honor server cipher preferences (thanks mfp, closes #18).
* Add functions for reading into/writing from bigarrays, avoiding copy (thanks
  mfp, closes #15).
* Support disabling SSL protocol versions (thanks Edwin Török, closes #13).
* Use Bytes instead of String for read and write, changes the ABI thus the
  version bump (thanks Vincent Bernardoff, closes #16, and mfp, closes #19).
* Make verbosity of client_verify_callback configurable (thanks Nicolas Trangez,
  closes #12).
* Fix build with old versions of SSL (thanks Edwin Török, closes #10).