#64
changed toColumnType of the NSDateColumn to return NSDate instances instead of NSNumber values with the time interval
Update .travis.yml
Update README.md
Merge pull request #65 from jklimke/fix_date_type_colum

fixed NSDate column issue returning only numbers when NSDate instances are expected
Update .travis.yml
Merge branch 'master' into definable_foreign_key_names

* master:
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  Update README.md
  Update .travis.yml
  #64 changed toColumnType of the NSDateColumn to return NSDate instances instead of NSNumber values with the time interval