Add tests for pg@9.2 on travis
Remove create DB portion of travis script
Shell out for recursive make
Add support for JSON data type

requires >= 9.2 of postgres
Add test file

Forgot to add this to the last commit
Skip JSON tests on older versions of postgres
Run the second pass of the tests on postgres 9.2
Run script to create test table on postgres 9.2
Merge pull request #239 from brianc/json-support

add support for json data type