Specify that the greatest version we can support of the activerecord-jdbc-adapter is 1.2.9.1.   The 1.3.x line of the activerecord-jdbc-adapter introduces changes that break the functionality of this adapter
Merge pull request #16 from RobGoretsky/set_ar_jdbc_version_to_1_2_9_1

Specify that the greatest version we can support of the activerecord-jdbc-adapter is 1.2.9.1