Handle array column limits
if column limit is an array, the values are serialilzed into column attr
  cf enum_column3 gem
Revise the warning in the README

See #122. I've revised the wording to placing the important text in the first sentence, and made the warning a bit more 2013-like by referencing VCS instead of backing files up.
fix spec for composite_primary_keys #105
replace deprecated :rubygems source
bump version
Merge pull request #123 from rstacruz/patch-1

Revise the warning in the README
Merge pull request #115 from tableonline/handle_column_limit_with_arrays

Handle array column limits
Move the authors to a separate file since it's getting too long
Add project badges