add captcha functionality to XEditor

Description

Add xed:captcha functionality to xeditor based on Google ReCaptcha and MIR captcha implementation.

Properties needed:

ReCaptcha.java

Auszug aus new-author-includes.xed

Environment

None

Assignee

Frank L├╝tzenkirchen

Reporter

Kathleen Neumann

Labels

None

URL

None

External issue ID

None

Components

Fix versions

Priority

Medium
Configure