Improves model test coverage for Article, Contact and User

Removes nagging spec

Updates spec to use correct var

Removes unused method
[cleanup] Converts indentation to spaces
Resolves bad specs, cleans up Article.
Removes duplicate spec.
add hakiri badge, reorder other badges
Add various dev tools and update rspec

Added better_errors, binding of caller, and pry-nav. Also upgrades
rspec to 2.99 and fixes some deprecations for v3.
Merge pull request #77 from 18F/feature/model_specs

Increases models test coverage to 88%
also adding gemnasium
Merge pull request #58 from 18F/feature/add_dev_tools

Add various dev tools and update rspec
Fixed contact link to use mail_to correctly
Merge pull request #62 from adelevie/feature/hakiri_badge

add hakiri badge, reorder other badges
Merge pull request #75 from nickbristow/feature/fix_typo_in_footer

Fixed contact link to use mail_to correctly
[Issue #3] Initial steps to rails 4 upgrade
Converts attr_accessible to strong-parameters
Upgrades activeadmin to (1.0.0.pre)