Fixes regression in resource list component

[cspanring]

• fixes a regression introduced in Improves test coverage for cloudinary resource list component #14
• adds proper start and stop behavior for Pretender (Improves test coverage for cloudinary resource list component #14 was only running one test...)

@davidbilling thanks for merging! and sorry for the trouble, should've caught this in #14.

[cspanring]

@davidbilling additional changes to make ember-try pass on travis:

• remove bower dependency
• switch ember-try to yarn as workaround for npm install does not run for all scenarios except for the default one ember-cli/ember-try#207
• remove older LTS from ember-try (keeping most recent LTS as good practice)

[davidbilling]

@cspanring Thanks, I did a update with Ember-cli-update to 3.4, but that was revoced and something when sideways when reverting it. I have not had any time looking into it.
Really appreciate that you trying to fix the ember:try test!

[cspanring]

all tests in ember-try are now passing, except LTS 2.16, which is not in the ember-try config and I'm not sure why travis is trying to run it.

[davidbilling]

@cspanring It is in travis.yml I think...
env: EMBER_TRY_SCENARIO=ember-lts-2.16

[cspanring]

trying a few combinations to make travis happy, will squash the commits once I found the correct combo...

[davidbilling]

🥇 Thanks!

[cspanring]

@davidbilling all set, ember-try and travis are now happy