UI fixed/changes for macOS Sierra

filter background processing
support for filtering when enter is hit after trying full #keyword
'not found' binary attribute/#keyword
error alert when opening file in Finder fails
skipper dylib/file/network enumeration for kernel task (pid 0x0)

TaskTableController.m

@@ -521,6 +521,9 @@ bail:
     //path to binary
     NSString* path = nil;
     
+    //file open error alert
+    NSAlert* errorAlert = nil;
+    
     //for top pane
     // ->get task
     if(YES != self.isBottomPane)
@@ -549,9 +552,17 @@ bail:
         goto bail;
     }
 
-    //open Finder
-    // ->will reveal binary
-    [[NSWorkspace sharedWorkspace] selectFile:path inFileViewerRootedAtPath:@""];
+    //open item in Finder
+    // ->error alert shown if file open fails
+    if(YES != [[NSWorkspace sharedWorkspace] selectFile:path inFileViewerRootedAtPath:@""])
+    {
+        //alloc/init alert
+        errorAlert = [NSAlert alertWithMessageText:[NSString stringWithFormat:@"ERROR:\nfailed to open %@", path] defaultButton:@"OK" alternateButton:nil otherButton:nil informativeTextWithFormat:@"errno value: %d", errno];
+        
+        //show it
+        [errorAlert runModal];
+    }
+
     
 //bail
 bail: