Merge branch 'global_labels' into 'master'

CHANGELOG

app/controllers/admin/labels_controller.rb

app/models/label.rb

app/models/project.rb

app/services/projects/create_service.rb

app/views/admin/labels/_form.html.haml

app/views/admin/labels/_label.html.haml

app/views/admin/labels/destroy.js.haml

app/views/admin/labels/edit.html.haml

app/views/admin/labels/index.html.haml

app/views/admin/labels/new.html.haml

app/views/layouts/nav/_admin.html.haml

config/routes.rb

db/migrate/20150902001023_add_template_to_label.rb

db/schema.rb

features/admin/labels.feature

features/steps/admin/labels.rb

spec/services/projects/create_service_spec.rb