Enable Rails validates on option at import_with_validations
context -> validate_with_context
:validate_with_context implies :validate => true
Replace column_for_attribute with column#type_cast.
Getting the test suite to work with both 3.2.x and 4.x. Use minitest when > 4.0 and use test/unit otherwise.

To run with 3.2.x:
    AR_VERSION=3.2 bundle update activerecord && AR_VERSION=3.2 bundle exec rake test:mysql2

To run with 4.1.x:
    
    AR_VERSION=4.1 bundle update activerecord && AR_VERSION=4.1 bundle exec rake test:mysql2
Also, run the test suite for ActiveRecord 4.1.x.
Replace Delorean with Timecop and Chronic. This avoids false negatives if a second passes between the import occurring and the assertion occurring.
Consolidating the travis build script to make it easier to test multiple versions of active record and to print out what command is running.
Merge pull request #167 from zdennis/chores/travis-activerecord-4.1

Get TravisCI to run the 4.1.x series of tests to
Merge pull request #158 from SpringMT/master

Support Rails validates on option at import_with_validations