added undefined vars
added fetchWithFullData to VirtualItemsView
support for classes in tabs
removed duplicate code from VirtualItemsView.DataAdapter
write back selectedTab
fixed unshift method of List
Merge remote-tracking branch 'origin/dev' into dev
Merge remote-tracking branch 'origin/dev' into dev
added travis status image
Merge remote-tracking branch 'origin/dev' into dev
added mocha tests