Added configure check for libsodium
Fixed some typedef inconsistency
ensure zhash_foreach stops on non-zero return
Merge pull request #150 from avalanche123/5e5d99b607f0ca2ddebad6aa0569884eaf6bf0a1

fix zhash_foreach behavior
add zhash_foreach test
minor cosmetic fix
Merge pull request #151 from felipecruz/feature/add_zhash_forearch_test

Add zhash forearch test
Updated NEWS for 1.4.0
Using sodium_init() for library check
Merge pull request #152 from hintjens/master

Added libsodium hook
Fixed packaging for 1.4.0
Added zmsg_addmem_zero_copy
Merge pull request #153 from ulikoehler/master

Add zero-copy version of zmsg_addmem
Don't trap errors on sendto, these aren't necessarily fatal
Merge pull request #154 from hintjens/master

zbeacon asserts during self-test
Updated NEWS for 1.4.1
Updated version number for 1.4.1
Post-package version bump to 1.4.2
Added zmsg_reset_zero_copy
added zframe_reset_zero_copy selftest