Retrieve AM::Type::Boolean::FALSE_VALUES for Rails 5.

[josemotanet]

Relates to #704.

FALSE_VALUES isn't found in AR::ConnectionAdapters::Column anymore, but rather in AM::Type::Boolean.

EDIT: Not complete as I need to test it out with a new Rails project. I've just encountered other issues. Stand by.

@kares Help me review it? Thanks! <3

[kares]

looking good, thanks! just try to handle backwards compatibility whenever introducing "breaking" changes.

[RUN-CMD]

Is there anything we can do to help this along?

Also, the link to the Travis build is inaccessible:
https://travis-ci.org/jruby/activerecord-jdbc-adapter/builds/100861389

I would like to see the failures on Travis in order to compare against local test failures.

The old builds are still visible under @kares account on Travis:
https://travis-ci.org/kares/activerecord-jdbc-adapter

Thank you!

[kares]

hmm, smt seriously gone wrong with travis-ci ... need to ask #jruby org admins to try fix it for us.

best is to fork the repo and maybe target 1-3-stable as master might take a while to release (although if you're willing to help out there it would be appreciated) and its not completely 💚 (1-3 branch should be).

there's also a recent attempt at #708 https://github.com/jensnockert/activerecord-jdbc-adapter/tree/ar-50 ... we really need granular one-by-one commits that are explaining changes. the problem is that betas and final sometimes mean a lot of re-work for AR-JDBC (last 4.2 sure did). not sure how much changes there will be in 5 (hopefully not as much as 4.2) but full compatibility might be a lot of work and you need to commit to it.

[kares]

fbc5adc (with a backport from master: 783bd8a) now on 1-3-stable ... thank you for the effort.