Update author info in tree view

app/assets/stylesheets/sections/tree.scss

@@ -52,16 +52,28 @@
     }
   }
 
-  .tree-commit-link {
-    color:#333;
+  .tree_author {
+    padding-right: 8px;
+
+    img.avatar {
+      border: 0 none;
+      float: none;
+      margin-right: 0;
+      padding: 0;
+      width: 16px;
+    }
   }
 
-  a.tree-commit-link {
-    color: #666;
+  .tree_commit {
+    color: gray;
+
+    .tree-commit-link {
+      color: #444;
       &:hover {
         text-decoration: underline;
       }
     }
+  }
 }
 
 .tree-btn-group {

app/views/refs/logs_tree.js.haml

 - @logs.each do |content_data| 
   - file_name = content_data[:file_name]
-  - content_commit = content_data[:commit]
-  - tm = @project.team_member_by_name_or_email(content_commit.author_email, content_commit.author_name)
+  - commit = content_data[:commit]
 
   :plain
     var row = $("table.table_#{@hex_path} tr.file_#{hexdigest(file_name)}");
-    row.find("td.tree_time_ago").html('#{escape_javascript(time_ago_in_words(content_commit.committed_date))} ago');
-    row.find("td.tree_commit").html('#{escape_javascript(render("tree/tree_commit", tm: tm, content_commit: content_commit))}');
+    row.find("td.tree_time_ago").html('#{escape_javascript time_ago_in_words(commit.committed_date)} ago');
+    row.find("td.tree_commit").html('#{escape_javascript render("tree/tree_commit_column", commit: commit)}');

app/views/tree/_tree_commit.html.haml

-- if tm
-  = link_to "[#{tm.user_name}]", project_team_member_path(@project, tm)
-= link_to_gfm truncate(content_commit.title, length: tm ? 30 : 50), project_commit_path(@project, content_commit.id), class: "tree-commit-link"

app/views/tree/_tree_commit_column.html.haml

+%span.tree_author= commit.author_link avatar: true
+= link_to_gfm truncate(commit.title, length: 80), project_commit_path(@project, commit.id), class: "tree-commit-link"