Apparently strict mode is not enabled in toast widgets, due to a
'use_strict' typo, that must have crept in during jscs cleanup
This commit fixes the typo.
Closes-Bug: #1466003
Change-Id: I4cf30b8343bba6bbe7932e3927c6cbc8a81dc0df
Following John Papa's style guide
https://github.com/johnpapa/angular-styleguide,
this patch refactors the Angular code for 'toast' module.
Change-Id: I66b83a695046610aa44c9efdf44895fcd977e62b
Partially-Implements: blueprint jscs-cleanup