update tree rowheights to match css

# Conflicts:
#	plugins/c9.ide.scm/detail.js
#	plugins/c9.ide.scm/log.js
#	plugins/c9.ide.scm/scm.js

package.json

@@ -93,7 +93,7 @@
         "c9.ide.mount": "#816dbe987b",
         "c9.ide.navigate": "#6a1c2e253c",
         "c9.ide.newresource": "#f1f0624768",
-        "c9.ide.openfiles": "#28a4f5af16",
+        "c9.ide.openfiles": "#7fa4a97fed",
         "c9.ide.preview": "#c530a7978d",
         "c9.ide.preview.browser": "#c50007ebbc",
         "c9.ide.preview.markdown": "#ab8d30ad9f",

plugins/c9.ide.dialog.file/file.js

@@ -141,7 +141,7 @@ define(function(require, module, exports) {
                 
                 var height = parseInt(ui.getStyleRule(".filetree .tree-row", "height"), 10);
                 model.rowHeightInner = height;
-                model.rowHeight = height + 1;
+                model.rowHeight = height;
                 model.indent = 12;
                 model.getIconHTML = getIconHTML;
                 

plugins/c9.ide.tree/style.css

@@ -204,7 +204,7 @@
     font-variant: small-caps;
     font-size: 16px;
     margin-top: 0px;
-    margin-bottom: 3px;
+    margin-bottom: 0px;
     color: @tree-heading-color;
     text-shadow: @tree-heading-text-shadow;
     line-height: 0;

plugins/c9.ide.tree/tree.js

@@ -212,7 +212,7 @@ define(function(require, exports, module) {
             layout.on("eachTheme", function(e){
                 var height = parseInt(ui.getStyleRule(".filetree .tree-row", "height"), 10) || 22;
                 fsCache.model.rowHeightInner = height;
-                fsCache.model.rowHeight = height + 1;
+                fsCache.model.rowHeight = height;
                 
                 if (e.changed && tree) (tree).resize(true);
             });