Remove custom floor helper

[jscharf]

This project uses semver, please check the scope of this pr:

• #none# - documentation fixes and/or test additions
• #patch# - backwards-compatible bug fix
• #minor# - adding functionality in a backwards-compatible manner
• #major# - incompatible API change

Notes

This project has ember-math-helpers as a dependency so a custom floor helper is no longer needed. As far as I can tell, it's only used in one place anyway, which is in the pagination template for the last page button. I tested the pagination buttons after removing these files and it still works.

Resolves #84

CHANGELOG

• Remove custom floor helper

[coveralls]

Changes Unknown when pulling 2b66851 on jscharf:remove-floor-helper into ** on ciena-frost:master**.

[notmessenger]

References to floor need to be removed from tests/unit/helpers/is-lead-selection.js

[notmessenger]

This PR needs to be a major, not a patch. This is due to the fact that we were exporting this floor helper at the ember-frost-list/helpers/floor namespace and do not know what other consuming code may still be importing it, regardless of whether we have quit consuming it internally in this add-on.

I have made this change.

Update your changelog entry to reflect the removal of this previously-exported helper