Messing around with Travis CI.
Try to fix apt-add-repository call for Travis.
Try to get Travis to install PostGIS 2 from ubuntugis-unstable.
Try testing against multiple activerecord versions using Appraisal.
Try to fix couple missing tests by adding libgeos. Limit builds for now.
Another try at libgeos.
Also add libproj-dev to see if that fixes breaking tests.
Add libgeos++-dev to fix differences in the ubuntugis packages.
Re-enable other platforms. Add ffi-geos for jruby.
Add ffi-geos to appraisal gemfiles for jruby.
Only require activerecord as a dependency for Appraisals.
Fix missing `pg` require under ActiveRecord 3.0.
Fix JDBC connection under ActiveRecord 3.1.x.
Try testing against Postgis 1.5 and 2.0
Fix execute permissions on travis bins. Limit to 1 ruby while testing.
Fix ubuntugis add repo script
Try to fix tests to run under both PostGIS 1.5 and 2.0
Reenable other rubies.
Merge pull request #39 from GUI/ci

Enable CI with Travis (and a couple of fixes for older activerecord versions)
Minor code cleanup; allow overriding of database config; readme updates