Merge pull request #28 from jsilhan/master

error message in unicode
Relicenced from GPLv2 to LGPLv2+ (Issue #29)
Add LRO_IPRESOLVE option to set a kind of IP addresses to use when resolving host names.
Bump to 1.7.4
accepts unicoded destination as UTF-8 string (Related: RhBug:1108908)