ISO19139 / Index topic category label in keyword field instead of codelist value.
[Doc] Added informations about last version
Added information about editor
Added information about new metadata
Added admin configuration (virtual CSW)
Added information about admin tools
GeoPublisher / Fix error on ECW and MRA publication.
Merge pull request #539 from fxprunayre/improvement/iso19139/index-topiccategory-enumeration-translation-in-keyword

Improvement/iso19139/index topiccategory enumeration translation in keyword
CSW / GetRecords operation / constraint is not mandatory

The request
http://localhost:8080/geonetwork/srv/eng/csw?SERVICE=CSW&VERSION=2.0.2&REQUEST=GetRecords

return
```
<ows:ExceptionReport xmlns:ows="http://www.opengis.net/ows" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" version="1.2.0" xsi:schemaLocation="http://www.opengis.net/ows http://schemas.opengis.net/ows/1.0.0/owsExceptionReport.xsd">
<ows:Exception exceptionCode="MissingParameterValue" locator="constraintLanguage"/>
</ows:ExceptionReport>
```

And the equivalent using POST:

```
<?xml version="1.0"?>
<csw:GetRecords xmlns:csw="http://www.opengis.net/cat/csw/2.0.2" service="CSW" version="2.0.2">
    <csw:Query typeNames="csw:Record">
    </csw:Query>
</csw:GetRecords>
```
return :
```
<?xml version="1.0" encoding="UTF-8"?>
<csw:GetRecordsResponse xmlns:csw="http://www.opengis.net/cat/csw/2.0.2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opengis.net/cat/csw/2.0.2 http://schemas.opengis.net/csw/2.0.2/CSW-discovery.xsd">
  <csw:SearchStatus timestamp="2014-06-10T10:57:22" />
  <csw:SearchResults numberOfRecordsMatched="0" numberOfRecordsReturned="0" elementSet="summary" nextRecord="0" />
</csw:GetRecordsResponse>
```

Constraint must be not mandatory in GET mode.
Merge pull request #546 from fxprunayre/improvement/csw/fix-mandatory-constraint-param-in-get-mode

Improvement/csw/fix mandatory constraint param in get mode
GeoPublisher / Fix link URL.
Admin / Import page link always drive user to default node (#549).
Add XSL variable for easy access to request.
Fix findbug issue.
Rewrite rules / metadata/{{uuid}} redirect to old srv/eng/home service (#551).

Add rule for accessing metadata in HTML in multinode configuration also.
eg. http://localhost:8080/geonetwork/node1/metadata/da165110-88fd-11da-a88f-000d939bc5d8
MEF Import does not set privileges when info.xml is defined (#552).
Restore the set property on data directory (may be used in XSLTs). It was removed at some point ...
ISO19139 / Fix editor saving topic category.
ISO19110 / Feature type is not available in simple view mode (#555).
Editor / Fix template field initialization when element does not exist. Only generate the element when requested in the editor.