- ruby 2.3.1 (was 2.3.0)
- Update AR5 gemfile now that rails 5 is out
- Enable travis bundler cache. Hopefully this will speed up travis a bit.
https://docs.travis-ci.com/user/caching/
- set TargetRubyVersion: 1.9
We're seeing an issue with slow dependency resolution for
the AR3 gemfile, consistently taking 10 minutes on travis.
I am hoping that stricter version constraints will make
bundler's job easier.
If this doesn't improve the situation, we may have to try
debugging with `DEBUG_RESOLVER=1` turned on.