add gemnasium account
Merge pull request #9 from AAlvAAro/add-gemnasium-settings

add gemnasium account
update gems to latests versions
Merge pull request #10 from AAlvAAro/use-latests-gems

update gems to latests versions
added Gemfile.lock
Merge pull request #11 from AAlvAAro/use-latests-gems

added Gemfile.lock
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Merge branch 'master' of https://github.com/AAlvAAro/ecommerce into articles-controller
add footer styles