Fix issue alessandromaggio#33

Add DNS issue hint for socket error

Release version 1.0.5

Merge branch 'master' of https://github.com/alessandromaggio/pythonping

Merge branch 'master' of https://github.com/alessandromaggio/pythonping

Fix to DF option

Fix DF option, still does not work on Windows

Fix to DF option

Fix DF option, still does not work on Windows

Merge pull request alessandromaggio#6 from alessandromaggio/develop

Develop

Create LICENSE