update some gems
gritter config
cancan config ability
add foundation and gritter in JS
add gritter to SCSS
remove this ugly default for links
create join table entries_tags
add foreign key to entries
schema after migrations
add flash message for cancan exception
add relationships for entry and a scope
add relationships for tag
add relationship for user
show some links...
entries controller.

before filters, load and authorize and a bit of logic.