fixup! Consolidate z-index accross style files (#173) (#177)

bin/cdb.css

@@ -291,7 +291,7 @@
   width: 150px;
   padding: 5px;
   border: 1px solid #666;
-  z-index: 500;
+  z-index: 800;
 }
 .cdb .cdb-sheet .flagValues label {
   display: block;
@@ -352,7 +352,7 @@
   color: white;
   border: 1px solid black;
   padding: 5px;
-  z-index: 510;
+  z-index: 810;
 }
 .cdb .cdb-sheet td.t_file .preview .previewContent .label {
   text-align: center;

bin/common.less

@@ -4,9 +4,9 @@
 @tooltip-layer: @default-layer;
 @splitter-layer: @default-layer;
 @domkit-layer: 400;
-@popup-layer: 500;
+@popup-layer: 800;
 @header-layer: 600;
-@hidemodal-layer: 800;
+@hidemodal-layer: 700;
 
 // This is also set in hide.comp.ContextMenu
 @contextmenu-layer: 900;