cmake: use FindSodium module
cmake: correct find function
sockets created by accept are leaked to child processes (ticket #956)
Merge pull request #957 from jkryl/master

sockets created by accept are leaked to child processes (ticket #956)
Resolve issue #939

This bug is caused by fq which can terminate pipe before sending all
frames of a message first. So sometimes two messages were mixed and this
confused ZAP handler.

This patch just modifies one pipe parameter so that socket consumes all
messages before dropping the pipe.
Merge pull request #958 from hurtonm/master

Resolve issue #939
Modify MSVC link incremental setting for deconfliction with LTCG flag.
Add executable projects to VS2013 solution.
Merge branch 'zeromq/master'
Merge pull request #959 from evoskuil/master

Update and add executable projects to VS2013 solution.
Cleaned up XFAIL on resources

- this failing test was confusing users
- ZMTP v3.0 now does not define resources at all
- resources, along with other unimplemented aspects moved to
  RFC 37 ZMTP v3.1
Rationalize and update Visual Studio projects and packaging.
Merge branch 'evoskuil/master'
Update packaging metadata.
Merge pull request #960 from evoskuil/master

Rationalize and update Visual Studio projects and packaging.
Update packaging metadata.
Merge pull request #961 from evoskuil/master

Update NuGet packaging metadata.
Incorporate libsodium option and linkage, generalize, update packaging.
Merge branch 'evoskuil/master'
Merge pull request #964 from evoskuil/master

Incorporate libsodium option and linkage, generalize, update packaging.