Merge branch 'hotfix/0.2.25'
Merge branch 'master' into dev
Update dependencies to latest version (excluding `bluebird` - updated to last
1.x version instead of 2.x); update tests to reflect revised v3.x `validator`
module API - resolves #4
Merge branch 'task/update-dependencies' into dev
Bump version to 0.2.26
Merge branch 'release/0.2.26' into dev
Add eXperience Points column to badge table; amend models and routes to
acknowledge xp field; update tests - resolves #3
Merge branch 'feature/add_badges_xp_column' into dev
Bump version to 0.2.27
Merge branch 'release/0.2.27' into dev