Merge pull request #16 from leki75/master

Package multiple layout using matrix parameters
bump version to 0.1.9
Merge branch 'master' of https://github.com/Parallels/artifactory
Artifactory set and del properties with unit tests

  * Unit testing added

Change-Id: I254e09fedd470d258be9333f8f556e735ead0fc1
Fix del_properties with string parameter as props

Change-Id: Ib2cf67e24304a6249a6e994c3a9392d384e24ff4