add rails4 support, teardown rails < 3.1 support
downgrade appraisal gem

version 1.0 is doing kinda weird things to the generated gemfiles
teardown rails 3.1 support
update travis.yml
update test gemfile.lock
whitespace
more PR feedback
test under 2.1.1
add some voodoo that gets tests actually running under both rails 3.2 and 4
Merge pull request #3 from zendesk/ben/rails4

add rails4 support, teardown rails < 3.1 support