added appbarbutton-images
adapted buttons of viewtoolpicker
value of sliderthickness is saved. value for the right penlinecap is saved
deletebutton-error at sliderthickness is solved
Small design changes in Report-view; adapted ViewModel-tests
added applicationbar-top
Refactored report-view to work with messages; adapted editor-ViewModel-tests for sprites
Unified design for some editor-views; adapted ViewModel-tests; "project" to "program" in resource-strings
Merge TFS Changeset 1497