COMMONS-329: Unable to create folder with accented characters when sharing document

Fix description:
- Do not check folder name at commons level. ecms side will control this name.
COMMONS-330: Cannot upload a file in activity stream when host name contains "portal"

Problem analysis
- Rest URL will be extracted from URL request which contains host name. If host name has "portal" word, eXo Platform cannot distinguish between host name and portal container name

Fix description
- Do not include host name in rest URL

Conflicts:
	commons-webui-component/src/main/java/org/exoplatform/webui/commons/UIDocumentSelector.java