Merge pull request #48 from mnjuhn/master

Updating Master with Dev version
Merge pull request #49 from mnjuhn/master

Adding ability to view list of and load scenarios.
Merge pull request #50 from mnjuhn/master

Merging in latest release of scenario editor
Merge pull request #52 from mnjuhn/master

Merging Dev into master for latest scenario editor deployment
HotFix: Sensors save to xml file without writing unset optional attributes to xml node
Merge branch 'master' into dev