#12 layout factory UT added
#12 bugfix
#12 updated the viewscreen UT
#12 viewscreen factory UT added
#12 viewport also extends the NodeWrapper class (but does not have the template engine set)
#12 method to retrieve the manager added to the viewport
#12 viewport UT updated
#12 manager UT updated
#12 added a bunch of UT cases on dependency setters
#12 UT added to the grunt task
make sure all the others venus process are closed before