Merge branch 'dm-tree-blob-blame-consistency' into 'master'

app/assets/stylesheets/framework/files.scss

app/assets/stylesheets/framework/variables.scss

app/assets/stylesheets/pages/commits.scss

app/assets/stylesheets/pages/diff.scss

app/assets/stylesheets/pages/tree.scss

app/helpers/blob_helper.rb

app/helpers/commits_helper.rb

app/views/projects/blame/show.html.haml

app/views/projects/blob/_blob.html.haml

app/views/projects/blob/_breadcrumb.html.haml

app/views/projects/blob/_header.html.haml

app/views/projects/blob/preview.html.haml

app/views/projects/find_file/show.html.haml

app/views/projects/tree/_tree_content.html.haml

app/views/projects/tree/_tree_header.html.haml

app/views/projects/tree/show.html.haml