Merge branch 'file-commit-list' into 'master'

Fixed issue where only 25 commits would load in file listings

Fixes #1310

See https://gitlab.com/gitlab-org/gitlab-ce/tree/master and it will only show the first 25 files commit messages.

See merge request !477

app/views/projects/refs/logs_tree.js.haml

@@ -15,5 +15,5 @@
     if(current_url == log_url) {
       // Load 10 more commit log for each file in tree
       // if we still on the same page
-      ajaxGet('#{logs_file_namespace_project_ref_path(@project.namespace, @project, @ref, @path || '/', offset: (@offset +  @limit))}');
+      ajaxGet('#{logs_file_namespace_project_ref_path(@project.namespace, @project, @ref, @path || '', offset: (@offset +  @limit))}');
     }