ECMS-4199 Content Explorer: Error on Relation Panel of WAI Portal's home page
Problem analysis: Reason of above problem is due to hard-coded uuid of language symlink from xml deployment file.
Fix description:
* For creating new portal: add plugin AddTranslationPlugin for adding translation when creating new portal.
Merge commit 'd9f3c3a6760ec41989c2c6687fb34db262753019' into HEAD