Align tree items better

package.json

@@ -108,7 +108,7 @@
         "c9.ide.save": "#e00549cb0f",
         "c9.ide.scm": "#0bccfb982b",
         "c9.ide.terminal.monitor": "#b76f1c9f24",
-        "c9.ide.test": "#1049b049cc",
+        "c9.ide.test": "#9cbf45fb56",
         "c9.ide.test.mocha": "#3126bb6416",
         "c9.ide.theme.flat": "#2de8414db7",
         "c9.ide.threewaymerge": "#229382aa0b",

plugins/c9.ide.layout.classic/themes/flat-light.less

@@ -305,6 +305,9 @@
 .filetree .tree-row > span.caption {
     margin-left: 4px;
 }
+.filetree .tree-row.heading > span.caption {
+    margin-left: 0;
+}
 
 .toolbar-top.basic .c9-menu-btnDown.scripts{
     border: 0;