hide deprecation notice when subclassing ember bootstrap classes

[basz]

fixes #24

should this also be done for https://github.com/kaliber5/ember-bootstrap-changeset-validations/blob/master/addon/components/bs-form/element.js

[basz]

travis fails. with 'yarn install --no-lockfile --non-interactive' but runs fine with 'yarn install'.

dunno... seems to come from https://github.com/kaliber5/ember-bootstrap-changeset-validations/blob/master/tests/integration/components/bs-form-element-test.js#L119

[jelhan]

Thanks for working on this one!

should this also be done for https://github.com/kaliber5/ember-bootstrap-changeset-validations/blob/master/addon/components/bs-form/element.js

Yes.

travis fails. with 'yarn install --no-lockfile --non-interactive' but runs fine with 'yarn install'.

Do you see the same for current master or only for this feature branch? If the issue is also on current master it seems to be caused by a new version of some dependency. We would need to track it down to a specific dependency.

[basz]

On holidays atm... feel free to ping me in ~1.5 weeks

[jelhan]

travis fails. with 'yarn install --no-lockfile --non-interactive' but runs fine with 'yarn install'.

See #26. Should be fixed by #27.

[basz]

ok element class also done

[jelhan]

Thanks for the great work! Merged as the failing tests are not related.