git ignore test run output files: tests/test*.{log|trs}
Update configure: Allow libsodium to be installed in a custom path
Merge pull request #679 from mattconnolly/master

Update configure: Allow libsodium to be installed in a custom path
Bumped library version and age
Merge pull request #680 from hintjens/master

Bumped library version and age
stdint.h is not available on all platforms
Fixed build for MSVC 2008
Merge pull request #681 from ipechorin/master

stdint.h is not available on all platforms
Merge pull request #682 from hintjens/master

Fixed build for MSVC 2008
Updated libzmq CURVE to track RFC 27

* The INITIATE command vouch box is Box[C',S](C->S') instead of Box[C'](C->S),
  as recommended by https://codesinchaos.wordpress.com/2012/09/09/curvecp-1/,
  to reduce the risk of client impersonation.

* Mirrors the change in libcurve and CurveZMQ specifications.
Merge pull request #683 from hintjens/master

Updated libzmq CURVE to track RFC 27
Merge branch 'master' of https://github.com/zeromq/libzmq