Bump SaaS Rails to 4.2.4

[dahlbyk]

I didn't realize we have 2 × Gemfile.lock. As we did with #217, pulling the SaaS Rails dependency version bump out of #211 to be deployed independently.

In addition to the Rails bump, I've synchronized a few other version mismatches relative to the root Gemfile.lock.

[discorick]

Are changes in 1eadbaf out of band changes to the Gemfile.lock?

[dahlbyk]

Are changes in 1eadbaf out of band changes to the Gemfile.lock?

Syncing versions changed elsewhere, yes (e.g. json version was bumped in 2cec97f).

Why do we even have a second Gemfile under SaaS?

[discorick]

I wouldn't make any changes to the lock file - it will just rewrite itself as soon as anyone runs a 'bundle'. As a rule of thumb Gemfile.lock's should never be directly altered.

Why do we even have a second Gemfile under SaaS?

Technically a Rails engine is a self-contained Rails application that is injected like a Gem.

[dahlbyk]

Also, while we're fiddling with versions, I just pushed a tweak to bower.json to avoid emberjs/ember.js#12787.

I wouldn't make any changes to the lock file - it will just rewrite itself as soon as anyone runs a 'bundle'. As a rule of thumb Gemfile.lock's should never be directly altered.

FWIW, if I revert my Gemfile.lock changes (but leave the gemspec change), a bundle install reverts exactly to what I am committing here. It seems I got to it the wrong way, but arrived at correct results. 😀

[discorick]

Ok haha then I support!