Merge branch 'project-title-dropdown' into 'master'

CHANGELOG

app/assets/javascripts/gl_dropdown.js.coffee

app/assets/javascripts/project_select.js.coffee

app/assets/stylesheets/framework/header.scss

app/helpers/projects_helper.rb

app/views/layouts/header/_default.html.haml

app/views/layouts/project.html.haml

spec/features/projects_spec.rb

spec/javascripts/fixtures/project_title.html.haml

spec/javascripts/project_title_spec.js.coffee