Rename scripts_body_top to project_javascripts.

app/views/layouts/_head.html.haml

@@ -33,7 +33,7 @@
   - if content_for?(:page_specific_javascripts)
     = yield :page_specific_javascripts
-  = yield :scripts_body_top
+  = yield :project_javascripts
   = csrf_meta_tags

app/views/layouts/project.html.haml

@@ -3,7 +3,7 @@
 - header_title     project_title(@project) unless header_title
 - nav              "project"
-- content_for :scripts_body_top do
+- content_for :project_javascripts do
   - project = @target_project || @project
   - if @project_wiki && @page
     - preview_markdown_path = namespace_project_wiki_preview_markdown_path(project.namespace, project, @page.slug)