Bump version to v0.3.4.
Bump version to v0.3.4.

Attempt to mitigate Chrome sourcemap loading issue.

ember-cli/ember-cli-qunit,blimmer/ember-cli-qunit,nathanhammond/ember-cli-qunit,blimmer/ember-cli-qunit,ember-cli/ember-cli-qunit,zenefits/ember-cli-qunit,nathanhammond/ember-cli-qunit,zenefits/ember-cli-qunit