fix(chrome): fix a "read-only" strict mode error in Chrome
Merge pull request #1795 from mozilla/issue-1794-read-only-error

fix(chrome): fix a "read-only" strict mode error in Chrome. r=vladikoff
fix(client): Allow leading/trailing whitespace on email addresses.

fixes #519
Standardize on the parameter name for an element - change `which` and `selector` to `el`
fix(coppa): better align error message in pop up
Merge pull request #1799 from mozilla/issue-1764

fix(coppa): better align error message in pop up
cleanup: Add more functional tests to ensure users that sign up with leading/trailing whitespace on their email address can sign in without the whitespace.
Merge pull request #1797 from mozilla/issue-519-whitespace-email

fix(client): Allow leading/trailing whitespace on email addresses

fixes #1803
fix(client): COPPA - make learn more link target _blank only on sync

fixes #1783
Add tests for the cannot_create_account view.
Merge pull request #1798 from mozilla/issue-1783

fix(coppa): make learn more link target _blank only on sync

gracias @johngruen, I dig it!
fix(oauth): validate that redirect param exists.

Fixes #1786