convert to engine
use appraisal to test against rails versions; start uniqueness work with validation wrapper class
put version back to 1.5.0 for now
update travis config
gemfile instead of gemfiles
correct rails dep in gemspec
add color to rspec
remove comment from dummy app
try to use appraisal on travis
nope, that was silly
remove strict mass assignment setting from dummy config because it clashes with rails 3.1
show branch build status image [ci skip]
remove db files
Load test schema before running tests
Return empty array from failed validation instead of nil
First pass at validations controller
Add .rspec to gitignore
Extract into judge-core and judge-store, as per issue #3 :beer:
Add v1.6 branch to travis
Point build graphic at correct branch [ci skip]