Attempt to fix the test suite

[Dhaulagiri]

I'm not exactly sure what changed to make the test suite so unhappy, but in general ember-try seemed to be having problems installing ember data correctly so I updated a bunch of the failing scenarios to get them to work.

Of particular note:

• It might make sense to remove some of the older scenarios at some point
• I could not get the Ember 2.3 scenario working so I removed it. Let me know if you feel strongly about keeping it and I can try again.
• The ember-release scenario was breaking because it couldn't run with ember data 2.14. I think that is related to this ember data issue so I made that scenario run with ember data 2.13 for now.

[offirgolan]

@Dhaulagiri this is fantastic! Thank you so much for taking the time to fix this!

I 100% agree with you that some of these scenarios can be removed. What are your thoughts about the following:

env:
   - EMBER_TRY_SCENARIO=default
   - EMBER_TRY_SCENARIO=ember-1.13
   - EMBER_TRY_SCENARIO=ember-lts-2.4
   - EMBER_TRY_SCENARIO=ember-lts-2.8
   - EMBER_TRY_SCENARIO=ember-2.12
   - EMBER_TRY_SCENARIO=ember-release
   - EMBER_TRY_SCENARIO=ember-beta
   - EMBER_TRY_SCENARIO=ember-canary

[Dhaulagiri]

That sounds good to me. It seems like 1.13 could be dropped as well at some point, but as long as 1.13 support isn't a hindrance it seem worth keeping around for now.

[offirgolan]

Agreed. I plan to start dropping support for Ember < 2.0 when 3.0 is released.

[Dhaulagiri]

@offirgolan updated the scenarios based on your suggestion

[offirgolan]

@Dhaulagiri thank you! 😸