cmake: use FindSodium module
cmake: correct find function
Merge pull request #996 from hurtonm/master

Add metadata to received messages
tweetnacl integration
typo
no tweetnacl for windows currently
add metadata
Merge branch 'master' of github.com:soundart/libzmq

Conflicts:
	CMakeLists.txt
Merge pull request #997 from soundart/master

tweetnacl integration for curve
Don't add empty metadata to received messages