Get Asirra captcha working on more forms

The jQuery selector to find the form only worked for create account;
it now works for the captchas on login password failures and on page
editing.

Remove two debugging console.log() lines and fix some JSHint errors.

Rename the message for login captchas from the unused asirra-badpass to
the correct asirra-badlogin.

Bug: 39536
Change-Id: I92c3cb93337d4a704221d5a0e50ed56ae3b6b1cf
Merge "Get Asirra captcha working on more forms"