Update geocoder to version 1.2.6
Update bullet to version 4.14.0
Update Capybara to version 2.4.4
Update factory_girl_rails to version 4.5.0
Update haml-lint to version 0.7.0 & fix offenses.

Since haml-lint depends on rubocop, it got updated to version 0.27.1
which introduced a bunch of offenses which have been fixed in this
commit.