shifted tree_grid.css and its icons to wnframework
diff --git a/public/images/collapse.gif b/public/images/collapse.gif
deleted file mode 100644
index 01e6914..0000000
--- a/public/images/collapse.gif
+++ /dev/null
Binary files differ
diff --git a/public/images/expand.gif b/public/images/expand.gif
deleted file mode 100644
index 1b24ef1..0000000
--- a/public/images/expand.gif
+++ /dev/null
Binary files differ
diff --git a/public/js/tree_grid.css b/public/js/tree_grid.css
deleted file mode 100644
index 5fe5995..0000000
--- a/public/js/tree_grid.css
+++ /dev/null
@@ -1,21 +0,0 @@
-.cell-title {
- font-weight: bold;
-}
-
-.cell-effort-driven {
- text-align: center;
-}
-
-.toggle {
- height: 9px;
- width: 9px;
- display: inline-block;
-}
-
-.toggle.expand {
- background: url(app/images/expand.gif) no-repeat center center;
-}
-
-.toggle.collapse {
- background: url(app/images/collapse.gif) no-repeat center center;
-}
\ No newline at end of file
