Testing #4357

Conflicts:
	web/src/main/webapp/geocat.css
	web/src/main/webapp/scripts/editor/metadata-editor.js
Modifying templates so the xml.relation service works
Removing duplicated relation template
Changes in xml.relation to return the type of relation (aggregationInfo)

Conflicts:
	web/src/main/webapp/xsl/metadata/relation.xsl
Removing parent option
Removing parent section from metadata relations.
Adding on lucene the aggregationInfo information.
Showing siblings as siblings.

Conflicts:
	web/src/main/webapp/loc/dut/xml/strings.xml