pull
seb-website_development
merge
cambios varios en grupos y newsletter
merge
merge
merge
merge
Merge branch 'bootstrap' of https://github.com/sepmx/seb-website into bootstrap
cambio a la ruta
migraciones y vistas para newsletter
vistas de templates
modelo de template
modelo/controlador de newsletter update
Merge branch 'bootstrap' of https://github.com/sepmx/seb-website into bootstrap