Issues/951/upgrades breaking

[agentgt]

@jknack The solution in 4.3.0 for allowing records in #826 of checking java version and then adding the method value resolver is flawed in my opinion and is going to continue to cause bugs like #951

This pull request effectively makes records work by default for folks using new JDKs while still allowing existing previous users using defaultValueResolvers to have templates that behave the same.

I highly recommend we try to get this in a release soon to minimize the window that folks will not inherently rely on methods being resolved by default (ie the users who just started using handlebars picking 4.3.0 and relying on the flawed default behavior).