Merge branch 'master' of git://github.com/NK29/RevitTrainingMaterial

delete Conflicting files
.vs/slnx.sqlite

Author: Jeremy Tammik

.vs/slnx.sqlite

@@ -309,7 +309,7 @@ public Result Execute(
 
         // modified code for Revit 2015
         projInfoElem.LookupParameter(kParamNameVisible).Set(55);
-        projInfoElem.LookupParameter(kParamNameVisible).Set(0);
+        projInfoElem.LookupParameter(kParamNameInvisible).Set(0);
         transaction.Commit();
       }