Blocks 'resend confirmation'

• ISSUE-50: Proper escaping of single qutoes in lang file,
• ISSUE-45: User can login without admin's intervention (using Re-send confirmation button),
• ISSUE-38: Confirmation message to the admin gives randomly wrong user name.

Compatibility with Moodle 3.9

Some functions have been dropped in 3.9 and need to be removed from the plugin.

Repairs captcha after Auth API migration

Merge pull request #30 from hrimhari/release/1.4.3

fix(ISSUE-29): repairs config reference for Captcha after Auth API migration

Addressing old issues

Merge pull request #28 from hrimhari/release/1.4.3

Fixes for release 1.4.3

Blocks confirm page if not authenticated and with capability

Merge pull request #27 from hrimhari/bugfix/ISSUE-26-phantom-confirm

Bugfix/issue 26 phantom confirm

1.2.4

• Bug fix: PHP syntax.
• Bug fix: wrong language for admin notification.
• Bug fix: wrong error detection for email_to_user().

1.2.3

• Bug fix: wrong syntax for get_string_manager().
• Bug fix: wrong error detection for email_to_user().

1.2.2

Update version.php