Allow 0 as the value of a tag
ArrayController test: #lookupItemController is not called when `idx` is out of range
Fix failing test written in 9d3ecef - Fixes #1982
fixed incorrect description of view lifecycle tests
Merge pull request #1987 from bartsqueezy/master

Minor content update:  fixed incorrect description of view lifecycle tests
Merge pull request #1983 from lcoq/array_controller_lookupitemcontroller_fix

Array controller lookupitemcontroller fix
Merge pull request #1977 from mhelabs/text_field_zero_value_fix

Allow 0 as the value of a tag
Use ember-dev for tooling
Merge pull request #1999 from CrowdStrike/tooling

Use ember-dev for tooling
Update ember-dev