Add support for symfony/process >=3.0 (#21)

Improve addresses (#15)

* Enhance addresses

* Add some tests

* Fix bug in php 5.3

* Improve code coverage by removing setters of address

* Use ip/mac address as key of addresses array

* Add some tests

Merge pull request #13 from mtdavidson/feature/resolveFailedToExecute…

…NmapIssue

Resolve issue #11 prevent return of -1 ( 255 ) code

Merge pull request #10 from arall/master

Service info: Product & version

update travis-ci config

Merge pull request #3 from Falc/master

Add the "disable reverse DNS resolution" flag and a test case.

typo