Merge pull request #18 from GlobalNOC/master

syncing 1.0.0 with master
added ability to rebalance on port status event
Merge pull request #19 from bgeels/1.0.0-dev

ISSUE=9105 added ability to rebalance on port status event
fixed a not needed requirement that prevented SciPass from running without Ryu
Merge pull request #22 from ajragusa/1.0.0-dev

fixed a not needed requirement that prevented SciPass from running witho...
Merge pull request #23 from GlobalNOC/1.0.0-dev

1.0.0 dev